Journal ArticleMol Genet Metab · February 2024
INTRODUCTION: The standard of care for patients with infantile-onset Pompe disease (IOPD) is enzyme replacement therapy (ERT), which does not cross the blood brain barrier. While neuromuscular manifestations of IOPD are well-described, central nervous syst ...
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Journal ArticleClin Imaging · March 2023
This manuscript addresses the issue of the need for improvement of the work culture in Radiology departments. The manuscript uses advice from the famous college basketball coach John Wooden to highlight the issues involved in the work culture environment i ...
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Journal ArticleBlood Adv · May 10, 2022
Infantile Krabbe disease (IKD) can be treated with hematopoietic cell transplantation (HCT) if done during the first weeks of life before symptoms develop. To facilitate this, newborn screening (NBS) has been instituted in 8 US states. An application to ad ...
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Journal ArticleNeurology · August 11, 2020
OBJECTIVE: To characterize the extent of CNS involvement in children with Pompe disease using brain MRI and developmental assessments. METHODS: The study included 14 children (ages 6-18 years) with infantile Pompe disease (IPD) (n = 12) or late-onset Pompe ...
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Journal ArticleAJR Am J Roentgenol · January 2020
OBJECTIVE. This article provides comments from a small group of highly qualified reviewers of the American Journal of Roentgenology (AJR) regarding their approach to assessing manuscripts. The objective is to educate authors about the issues to which revie ...
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Journal ArticleAJR Am J Roentgenol · January 2020
OBJECTIVE. Comments from manuscript reviews are helpful for guiding a decision about publication and also afford a source of valuable information about how to improve a manuscript. This article is a compendium of comments from reviews of AJR Neuroradiology ...
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Journal ArticleAJR Am J Roentgenol · January 2020
OBJECTIVE. The objective of this article was to study the effect of decreasing the time allowed an American Journal of Roentgenology (AJR) reviewer to consider an invitation to review on time for two invitees to accept an invitation and time for both revie ...
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Journal ArticleAJR Am J Roentgenol · January 2019
OBJECTIVE: The purpose of this study is to discuss the evidence supporting the use of neuroimaging in adult patients presenting with new-onset seizure. CONCLUSION: Unenhanced CT should be the initial imaging examination performed for adults presenting with ...
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Journal ArticleNeuroradiol J · December 2018
We employed a novel diffusion tensor imaging phantom to study intra- and interscanner reproducibility on two 3T magnetic resonance (MR) scanners. Using a phantom containing thousands of hollow micron-size tubes in complex arrays, we performed two experimen ...
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Journal ArticleDrug Saf · August 2018
INTRODUCTION: Over the past decade, the potential for drug-associated progressive multifocal leukoencephalopathy (PML) has become an increasingly important consideration in certain drug development programmes, particularly those of immunomodulatory biologi ...
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Journal ArticleNeuroradiol J · April 2018
Purpose The purpose of this study was to compare quantitative diffusion tensor imaging metrics in dogs affected with a model of Krabbe disease to age-matched normal controls. We hypothesized that fractional anisotropy would be decreased and radial diffusiv ...
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Journal ArticleNeuroradiol J · February 2018
Purpose We investigated fractional anisotropy (FA) and radial diffusivity (RD) in a canine model of mucopolysaccharidosis (MPS). We hypothesized that canines affected with MPS would exhibit decreased FA and increased RD values when compared to unaffected c ...
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Journal ArticleCochrane Database Syst Rev · January 22, 2018
BACKGROUND: Gliomas are the most common primary brain tumour. They are graded using the WHO classification system, with Grade II-IV astrocytomas, oligodendrogliomas and oligoastrocytomas. Low-grade gliomas (LGGs) are WHO Grade II infiltrative brain tumours ...
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Journal ArticleBrain Inj · 2018
OBJECTIVE: Multisite and longitudinal neuroimaging studies are important in uncovering trajectories of recovery and neurodegeneration following traumatic brain injury (TBI) and concussion through the use of diffusion tensor imaging (DTI) and other imaging ...
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Journal ArticleNeuroradiol J · October 2017
Purpose We compared fractional anisotropy and radial diffusivity measurements between pediatric canines affected with mucopolysaccharidosis I and pediatric control canines. We hypothesized that lower fractional anisotropy and higher radial diffusivity valu ...
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Journal ArticleNeuroradiol J · August 2017
Purpose We describe a novel technique for measuring diffusion tensor imaging metrics in the canine brain. We hypothesized that a standard method for region of interest placement could be developed that is highly reproducible, with less than 10% difference ...
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Journal ArticleNeuroradiol J · August 2017
Purpose The purpose of this study was to investigate a novel tensor shape plot analysis technique of diffusion tensor imaging data as a means to assess microstructural differences in brain tissue. We hypothesized that this technique could distinguish white ...
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Journal ArticleEpilepsia · June 2017
OBJECTIVE: Our aim was to explore the association between plasma cytokines and febrile status epilepticus (FSE) in children, as well as their potential as biomarkers of acute hippocampal injury. METHODS: Analysis was performed on residual samples of childr ...
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Journal ArticleAJR Am J Roentgenol · June 2017
OBJECTIVE: Brain arteriovenous malformation (AVM) rupture results in substantial morbidity and mortality. The goal of AVM treatment is eradication of the AVM, but the risk of treatment must be weighed against the risk of future hemorrhage. CONCLUSION: Imag ...
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Journal ArticleColloids Surf B Biointerfaces · February 1, 2017
Detecting circulating tumor cells (CTCs) with high sensitivity and specificity is critical to management of metastatic cancers. Although immuno-magnetic technology for in vitro detection of CTCs has shown promising potential for clinical applications, the ...
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Journal ArticleGenet Med · December 2016
BACKGROUND: Early infantile Krabbe disease is rapidly fatal, but hematopoietic stem cell transplantation (HSCT) may improve outcomes if performed soon after birth. New York State began screening all newborns for Krabbe disease in 2006. METHODS: Infants wit ...
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Journal ArticleNeuroradiol J · December 2016
PURPOSE: The goal of this study was to compare the diffusion tensor imaging (DTI) metrics from an end-stage canine Krabbe brain evaluated by MR imaging ex vivo to those of a normal dog brain. We hypothesized that the white matter of the canine Krabbe brain ...
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Journal ArticleEpilepsia · July 2016
OBJECTIVES: To identify risk and risk factors for developing a subsequent febrile seizure (FS) in children with a first febrile status epilepticus (FSE) compared to a first simple febrile seizure (SFS). To identify home use of rescue medications for subseq ...
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Journal ArticleNeuroradiol J · February 2016
The goal of this study was to apply image registration-based automated segmentation methods to measure diffusion tensor imaging (DTI) metrics within the canine brain. Specifically, we hypothesized that this method could measure DTI metrics within the canin ...
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Journal ArticleAJR Am J Roentgenol · January 2016
OBJECTIVE: The purpose of this article is to review the unique physiologic changes that characterize pregnancy and the puerperium, some that substantially affect the cerebrovascular system. Conditions that can cause neurologic deterioration and share featu ...
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Journal ArticleAJR Am J Roentgenol · January 2016
OBJECTIVE: Herpesviridae are a family of DNA viruses remarkable for their ability to both promote acute infection and enter a latent phase with potential of reactivation. Herpes infections are ubiquitous throughout the human life span, regardless of the de ...
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Journal ArticleNeuroradiol J · December 2015
OBJECTIVE: This study examined the effect of mucopolysaccharidosis (MPS) type 1 on diffusion tensor imaging (DTI) metrics in the canine brain. We hypothesized 1) white matter regions in the MPS brain would show decreased fractional anisotropy (FA) and incr ...
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Journal ArticleExp Neurol · November 2015
Children with mucopolysaccharidosis I (MPS I) develop hyperintense white matter foci on T2-weighted brain magnetic resonance (MR) imaging that are associated clinically with cognitive impairment. We report here a diffusion tensor imaging (DTI) and tissue e ...
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Journal ArticleDev Psychopathol · November 2015
Magnetic resonance imaging studies of maltreated children with posttraumatic stress disorder (PTSD) suggest that maltreatment-related PTSD is associated with adverse brain development. Maltreated youth resilient to chronic PTSD were not previously investig ...
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Journal ArticleIEEE Trans Biomed Eng · May 2015
UNLABELLED: Tumor recurrence following surgery is a common and unresolved medical problem of great importance since surgery is the most widely used treatment for solid-mass tumors worldwide. A contributing factor to tumor recurrence is the presence of resi ...
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Journal ArticleCochrane Database of Systematic Reviews · March 10, 2015
This is the protocol for a review and there is no abstract. The objectives are as follows: To determine the diagnostic test accuracy of magnetic resonance (MR) perfusion imaging in differentiating primary grade II gliomas from higher grade gliomas at first ...
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Journal ArticleAJNR Am J Neuroradiol · March 2015
The past decade has seen impressive advances in the types of neuroimaging information that can be acquired in patients with traumatic brain injury. However, despite this increase in information, understanding of the contribution of this information to prog ...
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Journal ArticleBioconjug Chem · February 18, 2015
Detecting positive tumor margins and local malignant masses during surgery is critical for long-term patient survival. The use of image-guided surgery for tumor removal, particularly with near-infrared fluorescent imaging, is a potential method to facilita ...
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Journal ArticleJ Magn Reson Imaging · February 2015
Dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) is used to track the first pass of an exogenous, paramagnetic, nondiffusible contrast agent through brain tissue, and has emerged as a powerful tool in the characterization of brain tumor ...
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Journal ArticleEmerg Radiol · February 2015
Spontaneous intracranial hemorrhage is a neurological emergency commonly encountered by the emergency radiologist. This article reviews the approach to spontaneous brain parenchymal hemorrhage, including common causes and the role of various neuroimaging m ...
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Journal ArticleNeuroradiol J · February 2015
The goal of this study was to determine the degree to which ex vivo diffusion tensor imaging (DTI) parameters correlate to one another in white matter regions on very high resolution MR scans. Specifically, we hypothesized that radial diffusivity (RD) and ...
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Journal ArticleJ Child Neurol · January 2015
The relationship between superior longitudinal fasciculus microstructural integrity and neuropsychological functions were examined in 49 healthy children (range: 5-17 years) using diffusion tensor imaging. Seven major cognitive domains (intelligence, fine- ...
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Journal ArticlePediatrics · November 2014
Pelizaeus-Merzbacher Disease (PMD) is a rare X-linked recessive leukodystrophy caused by mutations in the proteolipid protein 1 gene on the Xq22 chromosome. PMD is a dysmyelinating disorder characterized by variable clinical presentation and course. Sympto ...
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Journal ArticleAcad Radiol · August 2014
RATIONALE AND OBJECTIVES: To evaluate whether the presence of facial photographs obtained at the point-of-care of portable radiography leads to increased detection of wrong-patient errors. MATERIALS AND METHODS: In this institutional review board-approved ...
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Journal ArticleNeuroradiol J · April 2014
We prospectively compared the ability of neuroradiologists to diagnose medulloblastoma with novice raters using only apparent diffusion coefficient (ADC) values measured on ADC maps. One hundred and three pediatric patients with pre-operative magnetic reso ...
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Journal ArticleAnn Neurol · February 2014
OBJECTIVE: Whether febrile status epilepticus (FSE) produces hippocampal sclerosis (HS) and temporal lobe epilepsy (TLE) has long been debated. Our objective is to determine whether FSE produces acute hippocampal injury that evolves to HS. METHODS: FEBSTAT ...
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Journal ArticleNeuroradiol J · February 2014
We assess a diffusion-weighted imaging (DWI) analysis technique as a potential basis for computer-aided diagnosis (CAD) of pediatric posterior fossa tumors. A retrospective medical record search identified 103 children (mean age: 87 months) with posterior ...
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Journal ArticleAJR Am J Roentgenol · January 2014
OBJECTIVE: We set out to determine functional white matter (WM) connections passing through the canine corpus callosum; these WM connections would be useful for subsequent studies of canine brains that serve as models for human WM pathway disease. Based on ...
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Journal ArticleCancer Res · October 15, 2013
Hypoxia-inducible factor 1 (HIF-1) is a master transcription factor that controls cellular homeostasis. Although its activation benefits normal tissue, HIF-1 activation in tumors is a major risk factor for angiogenesis, therapeutic resistance, and poor pro ...
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Journal ArticleNeuroradiol J · October 2013
This study examined the relationship between histological variables and diffusion tensor imaging (DTI) values in a normal canine brain. We hypothesized that radial diffusivity (RD) would correlate with myelin density and fractional anisotropy (FA) would co ...
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Journal ArticleJ Digit Imaging · October 2013
We introduce the concept, benefits, and general architecture for acquiring, storing, and displaying digital photographs along with medical imaging examinations. We also discuss a specific implementation built around an Android-based system for simultaneous ...
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Journal ArticleAJR Am J Roentgenol · September 2013
OBJECTIVE: This article addresses questions that radiologists frequently ask when planning, performing, processing, and interpreting MRI perfusion studies in CNS imaging. CONCLUSION: Perfusion MRI is a promising tool in assessing stroke, brain tumors, and ...
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Journal ArticleAJR Am J Roentgenol · May 2013
OBJECTIVE: We compared results from various methods of analysis of diffusion tensor imaging (DTI) data from a single dataset consisting of 10 healthy adolescents. SUBJECTS AND METHODS: All subjects were imaged on a single 3-T MRI system (single-shot echo-p ...
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Journal ArticleBiol Blood Marrow Transplant · April 2013
Metachromatic leukodystrophy (MLD) is an inherited demyelinating disease that causes progressive neurologic deterioration, leading to severe motor disability, developmental regression, seizures, blindness, deafness, and death. The disease presents as a lat ...
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Journal ArticleAJR Am J Roentgenol · April 2013
OBJECTIVE: The objective of our study was to evaluate whether facial and chest photographs obtained simultaneously with radiographs increase radiologists' detection rate of labeling errors. MATERIALS AND METHODS: We obtained simultaneous portable radiograp ...
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Journal ArticleComp Med · April 2013
The mucopolysaccharidosis type I (MPS I) dog model has been important in the development of therapies for human patients. We treated dogs with enzyme replacement therapy (ERT) by various approaches. Dogs assessed included untreated MPS I dogs, heterozygous ...
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Journal ArticleAJNR Am J Neuroradiol · March 2013
BACKGROUND AND PURPOSE: DTI in cerebral X-linked adrenoleukodystrophy may demonstrate abnormalities in both affected and nonaffected WM; these values have not been studied serially after hematopoietic stem cell transplantation. The purpose of this study wa ...
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Journal ArticleJournal of Digital Imaging · 2013
We introduce the concept, benefits, and general architecture for acquiring, storing, and displaying digital photographs along with medical imaging examinations. We also discuss a specific implementation built around an Android-based system for simultaneous ...
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Journal ArticleAJR Am J Roentgenol · January 2013
OBJECTIVE: This and its companion article address the 10 most frequently asked questions that radiologists face when planning, performing, processing, and interpreting different MR perfusion studies in CNS imaging. CONCLUSION: Perfusion MRI is a promising ...
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Journal ArticleBehav Sci Law · 2013
Positron Emission Tomography (PET) is a medical imaging technique that can be used to show brain function. Courts have admitted PET scan evidence in cases involving brain damage, injury, toxic exposure, or illness ("brain trauma") and to support claims of ...
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Journal ArticleMol Genet Metab · September 2012
AIM: Although hematopoietic cell transplantation (HCT) arrests the cognitive decline in mucopolysaccharidosis type IH (Hurler syndrome, MPS IH), these children continue to have neuropsychological deficits as they age. Both compromised attention and effects ...
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Journal ArticleNeuroradiology · September 2012
The five questions answered in this article revolve around the different parameters resulting from perfusion imaging processing, and this clarifies the frequently confusing terminology used to describe these parameters. More specifically, the article discu ...
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Journal ArticleComp Med · August 2012
Over a 5-y period, 3 chimpanzees at our institution experienced cerebrovascular accidents (strokes). In light of the increasing population of aged captive chimpanzees and lack of literature documenting the prevalence and effectiveness of various treatments ...
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Journal ArticleJ Neurooncol · July 2012
A 25% increase in bidimensional products (BPs) of tumor diameter has been used as a criterion for brain tumor progression. We studied intra-observer variability in measurements of BPs. Ten patients with contrast-enhancing glioblastoma multiforme underwent ...
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Journal ArticleNeuroradiol J · July 2012
Radial diffusivity is a diffusion tensor imaging (DTI) metric that has received increased attention in recent studies as a parameter that may better reflect myelination than the more commonly-used fractional anisotropy (FA). This study compared rates of ra ...
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Journal ArticleAJR Am J Roentgenol · June 2012
OBJECTIVE: Changes in signal intensity on T1- and T2-weighted MR images consistent with myelination in the corpus callosum occur during months 3-9 of postnatal life and occur earlier in the splenium than in the genu. We hypothesized that the rate of change ...
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Book · January 19, 2012
Residents, fellows and practicing radiologists who are preparing for certification exams (the current ABR Part II oral, the future ABR Core and Certifying, CAQ and MOC) will find the new edition of this case-based review book an indispensable tool for succ ...
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Journal ArticleArthritis Rheum · January 2012
OBJECTIVE: Statins reduce atherosclerosis and cardiovascular morbidity in the general population, but their efficacy and safety in children and adolescents with systemic lupus erythematosus (SLE) are unknown. This study was undertaken to determine the 3-ye ...
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Journal ArticleMil Med · November 2011
Our purpose was to demonstrate the consistency of radiologists' three-dimensional measurements of simulated blast fragment locations in vitro in an effort to objectively localize retained fragments and wound paths. We designed a phantom consisting of 10 na ...
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Journal ArticleEmerg Radiol · October 2011
Errors in image interpretation are a common problem in diagnostic radiology. Although many published articles provide trainees with the means to correctly interpret imaging studies, they do not provide a framework for understanding why and how errors occur ...
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Journal ArticleAJR Am J Roentgenol · September 2011
OBJECTIVE: The purpose of this study was to test a first hypothesis that fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values continue to change in late childhood and adolescence and a second hypothesis that less mature white matter ( ...
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Journal ArticleAJR Am J Roentgenol · August 2011
OBJECTIVE: The purpose of this study is to determine the agreement with which radiologists identify wound paths in vivo on MDCT and calculate missile trajectories on the basis of Cartesian coordinates using a Cartesian positioning system (CPS). MATERIALS A ...
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Journal ArticleEpilepsy Behav · May 2011
The superior longitudinal fasciculus (SLF) II and cingulum are two white matter tracts important for attention and other frontal lobe functions. These functions are often disturbed in children with drug-resistant (DR) partial epilepsy, even when no abnorma ...
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Journal ArticleRadiology · March 2011
PURPOSE: To evaluate the accuracy of computed tomography (CT)-based ballistic wound path identification in phantoms by determining the agreement between actual shooting angles and both trajectory angles measured with a picture archiving and communication s ...
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Journal ArticleMol Genet Metab · March 2011
The Research Challenges in CNS Manifestations of Inborn Errors of Metabolism workshop was designed to address challenges in translating potential therapies for these rare disorders, and to highlight novel therapeutic strategies and innovative approaches to ...
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Journal ArticleNeuroimaging Clin N Am · February 2011
Magnetic resonance (MR) imaging has been used by investigators and clinicians to assess the development of the brain in childhood to understand both patterns of normal growth and patterns by which a maturing brain may deviate from normal. Advanced MR techn ...
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Journal ArticleAJR Am J Roentgenol · January 2011
OBJECTIVE: This review presents some of the more common causes of false-positive and false-negative interpretations of cross-sectional imaging studies showing, or designed to show, dissection of the carotid or vertebral arteries. CONCLUSION: Dissection of ...
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Journal ArticleAJR Am J Roentgenol · January 2011
OBJECTIVE: The purpose of this article is to bring some of the potential causes of false-positive and false-negative interpretations of dural sinus thrombosis (DST) on cross-section imaging studies to the attention of radiologists. CONCLUSION: The prompt d ...
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Journal ArticleAJR Am J Roentgenol · January 2011
OBJECTIVE: This article reviews current neuroimaging techniques used for screening, diagnosis, and follow-up of patients with intracranial aneurysms as well as neuroendovascular therapeutic options available to patients. CONCLUSION: The diagnosis and manag ...
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Journal ArticleAJR Am J Roentgenol · January 2011
OBJECTIVE: The objective of this article is to address the 10 most frequently asked questions radiologists face when planning, performing, processing, and interpreting a perfusion CT study in a patient with clinical suspicion of acute ischemic stroke. CONC ...
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Journal ArticleAJR Am J Roentgenol · December 2010
OBJECTIVE: The process of revising a manuscript and successfully responding to the comments of reviewers and the Editor can be difficult. This article provides some practical steps to guide authors in this task and attain publication of their manuscript. C ...
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Journal ArticleAJR Am J Roentgenol · December 2010
Featured Publication
OBJECTIVE: The purpose of our study was to correlate decrease in apparent diffusion coefficient (ADC) and increase in fractional anisotropy (FA) in various white matter (WM) regions using diffusion tenor imaging (DTI) within the first year of life. MATERIA ...
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Journal ArticleAnal Chem · November 1, 2010
Featured Publication
Surgery is one of the most effective and widely used procedures in treating human cancers, but a major problem is that the surgeon often fails to remove the entire tumor, leaving behind tumor-positive margins, metastatic lymph nodes, and/or satellite tumor ...
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Journal ArticleEmerg Radiol · November 2010
Evaluation of the child with epilepsy is a relatively common indication for imaging in the emergency room setting. This room outlines some of the more important imaging features of causes of epilepsy in children. ...
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Journal ArticleEmerg Radiol · September 2010
The radiologist working in the emergency radiology setting is often faced with evaluating imaging findings of the patient whose chief complaint is that of the worst headache of life. The diagnosis of subarachnoid hemorrhage (SAH) is usually the initial con ...
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Journal ArticleEmerg Radiol · September 2010
The purpose of the study was to determine the ability to predict infarct age based on decrease in apparent diffusion coefficient (ADC) values. We retrospectively identified 94 individuals (age range 16 years to 91 years; mean 63.7 + 14.1 years) who underwe ...
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Journal ArticleVet Comp Oncol · September 2010
Functional imaging using positron emission tomography (PET) plays an important role in the diagnosis, staging, image-guided treatment planning and monitoring of malignant diseases. PET imaging complements conventional anatomical imaging such as computed to ...
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Journal ArticleEmerg Radiol · September 2010
The purpose of the study was to determine the frequency of various unenhanced computed tomography (CT) findings of early cerebral ischemia within brain parenchyma, which could be useful to the radiologist who is interpreting CT studies by indicating the CT ...
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Journal ArticleNeuroimaging Clin N Am · August 2010
Featured Publication
In the past decade, numerous advances in the understanding of brain tumor physiology, tumor imaging, and tumor therapy have been attained. In some cases, these advances have resulted from refinements of pre-existing technologies (eg, improvements of contra ...
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Journal ArticleAJR Am J Roentgenol · August 2010
OBJECTIVE: The purpose of this article is to propose a rule for determining which recommendation American Journal of Roentgenology (AJR) reviewers should provide when performing a review of a manuscript. CONCLUSION: The rule described here should allow rev ...
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Journal ArticleAJR Am J Roentgenol · January 2010
OBJECTIVE: This article provides a summary of some of the important articles published during the period 2005-2009 on the topic of imaging findings in head trauma. The intent is to provide the latest information regarding the diagnosis of important abnorma ...
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Journal ArticlePediatr Neurol · January 2010
We sought to distinguish patients testing positive for human herpesvirus 6 from those testing negative, based on clinical features and magnetic resonance images. Sixteen immunosuppresed patients were tested by polymerase chain reaction for human herpes vir ...
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Journal ArticleAJNR Am J Neuroradiol · January 2010
BACKGROUND AND PURPOSE: Sixty-four-section CT scanners have recently been introduced for vascular imaging. Before such scanners reach widespread use, scanning protocol should be optimized and image quality assessed. The goals of this study were to systemat ...
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Journal ArticleAJR Am J Roentgenol · December 2009
Featured Publication
OBJECTIVE: Bidimensional tumor measurements indicating a greater than 25% increase in tumor size are generally accepted as indicating tumor progression. We hypothesized that use of digital images and a homogeneous reader population would have lower interob ...
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Journal ArticleEmerg Radiol · November 2009
Radiologists working in an emergency radiology setting frequently interpret computed tomography (CT) studies of patients with suspected subarachnoid hemorrhage (SAH). This article reviews the sensitivity of CT for detection of SAH, some major patterns of S ...
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Journal ArticleAJR Am J Roentgenol · October 2009
OBJECTIVE: Initial assessment of patients with suspected dissection of the carotid or vertebral arteries typically is made by MRI, alone or in combination with MR angiography (MRA) or CT angiography (CTA). We reviewed the medical literature to determine, b ...
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Journal ArticleAJNR Am J Neuroradiol · August 2009
Featured Publication
Applications of nanotechnology to medicine are leading to novel means of imaging living systems and of delivering therapy. Much nanotechnology research is focused on methods for imaging central nervous system functions and disease states. In this review, t ...
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Journal ArticleEmerg Radiol · May 2009
MR imaging and MR angiography have become first-line imaging techniques in assessment of the patient with suspected dissection of the carotid and vertebral arteries. This review describes the advantages of these two techniques for diagnosis and describes d ...
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Journal ArticlePediatr Neurol · April 2009
Krabbe disease is a rare inherited neurologic disorder affecting the central and peripheral nervous systems. The disease has four phenotypes: early infantile, later onset, adolescent, and adult. The only known treatment is hematopoietic stem cell transplan ...
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Journal ArticleAJR Am J Roentgenol · April 2009
Featured Publication
OBJECTIVE: The goal of this study was to assess whether immunolabeled nanoparticle biomarkers are comparable to fluorescent marker imaging in measuring epidermal growth factor receptor (EGFR) expression. MATERIALS AND METHODS: EGFR expression was quantifie ...
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Journal ArticleJ Neurodev Disord · March 2009
To examine brain volumes in substructures associated with the behavioral features of children with FXS compared to children with idiopathic autism and controls. A cross-sectional study of brain substructures was conducted at the first time-point as part of ...
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Journal ArticleJ Cogn Neurosci · February 2009
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Previous research has established that age-related decline occurs in measures of cerebral white matter integrity, but the role of this decline in age-related cognitive changes is not clear. To conclude that white matter integrity has a mediating (causal) c ...
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Journal ArticleAJR Am J Roentgenol · January 2009
OBJECTIVE: This review is an attempt to bring some of the best articles in the recent pediatric neuroradiology literature to the attention of the AJR readership. CONCLUSION: Many advanced imaging capabilities are being brought to bear to noninvasively moni ...
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Journal ArticleAJR Am J Roentgenol · January 2009
OBJECTIVE: The findings of hypoxia in the term neonate are unique; neonatal brain imaging findings differ from those of older children. Evaluation of neonatal brain images for signs of hypoxic injury requires attention to a specific set of signs. CONCLUSIO ...
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Journal ArticleAJR Am J Roentgenol · January 2009
OBJECTIVE: The purpose of our study was to compare MRI findings with neurobehavioral development in infants with Krabbe's disease. MATERIALS AND METHODS: Nine infants with Krabbe's disease underwent a total of 19 MR studies during the first year of life as ...
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Journal ArticleEmerg Radiol · January 2009
Radiologists interpreting imaging studies of the central nervous system are well acquainted with the findings of various common neuroradiological disorders. This self-assessment module is intended to test the knowledge base of radiologists working in the e ...
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Journal ArticleRadiology · December 2008
PURPOSE: To test the hypothesis that patterns of signal intensity abnormality in human herpesvirus 6 (HHV6)-positive patients would allow distinction from patients who did not test positive for HHV6 encephalitis. MATERIALS AND METHODS: This retrospective s ...
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Journal ArticleAJR Am J Roentgenol · December 2008
Featured Publication
OBJECTIVE: Bioluminescence imaging is a powerful technique that has shown that hypoxia-inducible factor 1 (HIF-1), a transcription factor that protects tumor cells from hypoxia, is up-regulated in tumors after radiation therapy. We tested the hypothesis th ...
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Journal ArticleAJR Am J Roentgenol · October 2008
OBJECTIVE: The use of thrombolytic agents and other forms of reperfusion therapy has provided a means to reverse ischemia and minimize the size of infarctions. The purpose of this review is to examine various clinical trials of reperfusion agents and addre ...
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Journal ArticleAJNR Am J Neuroradiol · September 2008
BACKGROUND AND PURPOSE: Perfusion imaging sequences are an important part of imaging studies designed to provide information to guide therapy for treatment of cerebrovascular disease. The purpose of this study was to perform a meta-analysis of the medical ...
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Journal ArticleNeurobiol Aging · July 2008
Previous research suggests that, in reaction time (RT) measures of episodic memory retrieval, the unique effects of adult age are relatively small compared to the effects aging shares with more elementary abilities such as perceptual speed. Little is known ...
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Journal ArticleNeuro Oncol · June 2008
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The purpose of this study is to determine the maximum tolerated dose (MTD), dose-limiting toxicity (DLT), and intracerebral distribution of a recombinant toxin (TP-38) targeting the epidermal growth factor receptor in patients with recurrent malignant brai ...
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Journal ArticleAJNR Am J Neuroradiol · May 2008
The recent "Advanced Neuroimaging for Acute Stroke Treatment" meeting on September 7 and 8, 2007 in Washington DC, brought together stroke neurologists, neuroradiologists, emergency physicians, neuroimaging research scientists, members of the National Inst ...
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Journal ArticleAJR Am J Roentgenol · April 2008
OBJECTIVE: The objective of our study was to test the hypothesis that the finding of hyperintense hippocampal signal intensity on T2-weighted MR images soon after febrile status epilepticus is associated with subsequent hippocampal volume loss and persiste ...
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Journal ArticleAJR Am J Roentgenol · April 2008
OBJECTIVE: Infection at time of MR contrast administration has been reported to predispose patients with renal failure to development of nephrogenic systemic fibrosis (NSF). We assessed the frequency of infection at the time of MR contrast administration i ...
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Journal ArticleNeurobiol Aging · February 2008
We sought to examine the relations between age, gender and brain volumes in an elderly population; we also sought to examine ways of measuring these relations. Three sets of analyses were used: correlational analyses, in which correlations between independ ...
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Journal ArticlePsychol Med · December 2007
BACKGROUND: Orbitofrontal cortex (OFC) volumetric differences have been reported in depression, but in relatively small samples. Factors associated with these differences are not well described. We examined OFC volumes in a large sample of elderly depresse ...
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Journal ArticleAJR Am J Roentgenol · August 2007
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OBJECTIVE: The purpose of this study was to use diffusion-weighted and diffusion tensor imaging to investigate the status of cerebral white matter (WM) at term gestation and the rate of WM maturation throughout the first year of life in healthy infants. MA ...
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Journal ArticleNeuro Oncol · July 2007
Convection-enhanced delivery (CED) is a novel drug delivery technique that uses positive infusion pressure to deliver therapeutic agents directly into the interstitial spaces of the brain. Despite the promise of CED, clinical trials have demonstrated that ...
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Journal ArticleBiol Blood Marrow Transplant · June 2007
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Adrenoleukodystrophy (ALD) is an X-linked disorder caused by a defect in the metabolism of long chain fatty acids leading to demyelination, neurodegeneration, and death. The disease typically presents in young boys and adolescent boys. Allogeneic bone marr ...
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Journal ArticleAJR Am J Roentgenol · June 2007
OBJECTIVE: Hyperintense lesions are a common finding on neuroimaging and are associated not only with aging, medical illness, and some invasive medical procedures, but also with neurologic and psychiatric morbidity. We hypothesized that hyperintense lesion ...
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Journal ArticleAJR Am J Roentgenol · May 2007
OBJECTIVE: The objective of this article is to discuss the reasons that manuscripts fail to be published and to establish some principles for increasing the likelihood of publication. CONCLUSION: Many good manuscripts fail to be published because they viol ...
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Journal ArticleJ Neurooncol · May 2007
PURPOSE: Recent reports demonstrate the activity of imatinib mesylate, an ATP-mimetic, tyrosine kinase inhibitor, plus hydroxyurea, a ribonucleotide reductase inhibitor, in patients with recurrent glioblastoma multiforme. We performed the current phase 2 s ...
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Journal ArticleAJR Am J Roentgenol · April 2007
OBJECTIVE: Adipose-derived stem cells are an alternative stem cell source for CNS therapies. The goals of the current study were to label adipose-derived stem cells with superparamagnetic iron oxide (SPIO) particles, to use MRI to guide the transplantation ...
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Journal ArticleEmerg Radiol · April 2007
A wide variety of imaging findings can be seen in the setting of acute head trauma. The purpose of this manuscript is to review the major computed tomography and magnetic resonance imaging findings of various types of traumatic head injuries with the inten ...
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Journal ArticleAJR Am J Roentgenol · March 2007
OBJECTIVE: Convection-enhanced delivery is a promising approach to intracerebral drug delivery in which a fluid pressure gradient is used to infuse therapeutic macromolecules through an indwelling catheter into the interstitial spaces of the brain. Our pur ...
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Journal ArticleNeurobiol Aging · March 2007
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We combined measures from event-related functional magnetic resonance imaging (fMRI), diffusion tensor imaging (DTI), and cognitive performance (visual search response time) to test the hypotheses that differences between younger and older adults in top-do ...
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Journal ArticleEmerg Radiol · March 2007
Magnetic resonance (MR) imaging plays an increasingly important role in evaluation of the patient who has sustained spinal trauma. This review discusses the role of MR imaging relative to plain radiographs and computed tomography in the evaluation of the p ...
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Journal ArticleAnn N Y Acad Sci · February 2007
Neuroimaging research suggests that cerebral white matter (WM) integrity, as reflected in fractional anisotropy (FA) via diffusion tensor imaging (DTI), is decreased in older adults, especially in the prefrontal regions of the brain. Behavioral investigati ...
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Journal ArticleAJR Am J Roentgenol · January 2007
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OBJECTIVE: A wide variety of antiangiogenic agents have been developed for the treatment of neoplasms. Imaging studies play an important role in assessing the effects of these treatments. CONCLUSION: This review article introduces radiologists to features ...
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Journal ArticlePsychiatry Res · October 30, 2006
Numerous studies have shown gender differences in the brain volumes of elderly adults. Some evidence shows that higher estrogen levels may be neuroprotective, suggesting that hormone therapy (HT) may in part be responsible for these gender differences; how ...
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Journal ArticleAJR Am J Roentgenol · October 2006
OBJECTIVE: The purpose of this study was to correlate the degree of contrast enhancement on dynamic contrast-enhanced T1-weighted MRI and the relative cerebral blood volume (rCBV) values on T2*-weighted MRI in patients with high-grade brain neoplasms. SUBJ ...
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Journal ArticleTop Magn Reson Imaging · August 2006
The central nervous system undergoes profound and predictable developmental changes during the first few years of life that provide the structural and functional elements necessary for normal neurological development. The establishment and maturation of wh ...
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Journal ArticleRadiology · June 2006
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Diffusion-weighted magnetic resonance (MR) imaging and perfusion MR imaging are advanced techniques that provide information not available from conventional MR imaging. In particular, these techniques have a number of applications with regard to characteri ...
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Journal ArticleJ Nucl Med Technol · June 2006
OBJECTIVE: In this article, we provide a step-by-step guide to reviewing a manuscript that we hope will improve the quality of reviews for the AJR. CONCLUSION: We have provided a detailed series of guidelines for providing excellent reviews of manuscripts. ...
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Journal ArticleJ Nucl Med · June 2006
UNLABELLED: Results from animal experiments have shown that human IgG2/mouse chimeric antitenascin 81C6 (ch81C6) monoclonal antibody exhibited higher tumor accumulation and enhanced stability compared with its murine parent. Our objective was to determine ...
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Journal ArticleJ Neurooncol · April 2006
PURPOSE: We performed a retrospective study of patients with diffuse pontine glioma (DPG) who suffered neuraxis metastasis (NM) and characterized the incidence, clinical features, radiologic findings, and patterns of disease dissemination. METHODS: Magneti ...
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Journal ArticleAJNR Am J Neuroradiol · March 2006
Although these entities are histologically similar, recent advances in molecular genetics have allowed the distinction of central nervous system extraosseous Ewing sarcoma (CNS-EES) from central primitive neuroectodermal tumors (c-PNET) including medullobl ...
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Journal ArticleClin Cancer Res · February 1, 2006
PURPOSE: To determine the maximum tolerated dose (MTD) and dose-limiting toxicity (DLT) of gefitinib, a receptor tyrosine kinase inhibitor of the epidermal growth factor receptor, plus sirolimus, an inhibitor of the mammalian target of rapamycin, among pat ...
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Journal ArticleAJR Am J Roentgenol · February 2006
OBJECTIVE: The goal of this study was to determine if an iodinated, liposomal contrast agent could be used for high-resolution, micro-CT of low-contrast, small-size vessels in a murine model. MATERIALS AND METHODS: A second-generation, liposomal blood pool ...
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Journal ArticleJ Clin Oncol · January 1, 2006
PURPOSE: To assess the efficacy and toxicity of intraresection cavity iodine-131-labeled murine antitenascin monoclonal antibody 81C6 (131I-m81C6) among recurrent malignant brain tumor patients. PATIENTS AND METHODS: In this phase II trial, 100 mCi of 131I ...
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Journal ArticleJ Clin Oncol · December 20, 2005
PURPOSE: We performed a phase II study to evaluate the combination of imatinib mesylate, an adenosine triphosphate mimetic, tyrosine kinase inhibitor, plus hydroxyurea, a ribonucleotide reductase inhibitor, in patients with recurrent glioblastoma multiform ...
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Journal ArticleNeuropsychopharmacology · December 2005
This article reports on preliminary findings describing microstructural abnormalities in the white matter of cortical areas thought to be associated with bipolar disorder. In all, 14 patients with bipolar disorder and 21 nonpsychiatrically ill control subj ...
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Journal ArticleAnn N Y Acad Sci · December 2005
Krabbe disease is a rare autosomal recessive pediatric white matter (WM) disorder that is due to deficiency of a specific enzyme, beta-galactocerebrosidase. This report reviews our experience with use of diffusion tensor imaging (DTI) in serial assessment ...
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Journal ArticleArch Gen Psychiatry · December 2005
CONTEXT: While the neuroanatomical basis of autism is not yet known, evidence suggests that brain enlargement may be characteristic of this disorder. Inferences about the timing of brain enlargement have recently come from studies of head circumference (HC ...
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Journal ArticleAJR Am J Roentgenol · October 2005
OBJECTIVE: In this article, we provide a step-by-step guide to reviewing a manuscript that we hope will improve the quality of reviews for the AJR. CONCLUSION: We have provided a detailed series of guidelines for providing excellent reviews of manuscripts. ...
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Journal ArticleCancer · October 1, 2005
BACKGROUND: The authors determined the maximum tolerated dose (MTD) and dose-limiting toxicity (DLT) of irinotecan (CPT-11), a topoisomerase I inhibitor, when administered with temozolomide among patients with recurrent malignant glioma (MG). METHODS: Pati ...
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Journal ArticleJ Clin Oncol · October 1, 2005
PURPOSE: We conducted a two-phase clinical trial in patients with progressive malignant glioma (MG). The first phase of this trial was designed to determine the dose of O6-BG effective in producing complete depletion of tumor AGT activity for 48 hours. The ...
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Journal ArticleAJR Am J Roentgenol · September 2005
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OBJECTIVE: Our purpose is to describe methods of assessing leakiness of the blood-brain barrier and explain mechanisms for exploiting the blood-brain barrier for therapeutic purposes. CONCLUSION: Knowledge of the workings of the blood-brain barrier is impo ...
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Journal ArticleRadiology · August 2005
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PURPOSE: To use diffusion-tensor magnetic resonance (MR) imaging to measure involvement of normal-appearing white matter (WM) immediately adjacent to multiple sclerosis (MS) plaques and thus redefine actual plaque size on diffusion-tensor images through co ...
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Journal ArticleRadiology · July 2005
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PURPOSE: To prospectively compare diffusion-tensor magnetic resonance (MR) imaging anisotropy measurements of white matter (WM) regions in early and late treatment groups of Krabbe disease patients treated with stem cell transplantation. MATERIALS AND METH ...
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Journal ArticleAJR Am J Roentgenol · June 2005
OBJECTIVE: The purpose of our study was to determine which manuscript reviewer characteristics are most strongly associated with reviewer performance as judged by editors of the American Journal of Roentgenology (AJR). MATERIALS AND METHODS: At the AJR, ma ...
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Journal ArticleJ Nucl Med · June 2005
UNLABELLED: The objective was to perform dosimetry and evaluate dose-response relationships in newly diagnosed patients with malignant brain tumors treated with direct injections of (131)I-labeled anti-tenascin murine 81C6 monoclonal antibody (mAb) into su ...
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Journal ArticlePsychiatry Res · May 30, 2005
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Hyperintense lesions in both white matter and gray matter on T2-weighted magnetic resonance imaging (MRI) are associated with late-life depression. This large study examined differences in gray and white matter lesion volumes on brain MRI between 253 elder ...
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Journal ArticleN Engl J Med · May 19, 2005
BACKGROUND: Infantile Krabbe's disease produces progressive neurologic deterioration and death in early childhood. We hypothesized that transplantation of umbilical-cord blood from unrelated donors before the development of symptoms would favorably alter t ...
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Journal ArticleAJR Am J Roentgenol · May 2005
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OBJECTIVE: The purpose of our study was to determine the degree to which carotid canal fracture and other CT findings are associated with internal carotid artery (ICA) injury in patients with head trauma. MATERIALS AND METHODS: Three neuroradiologists retr ...
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Journal ArticleRadiology · May 2005
PURPOSE: To determine prospectively the diffusibility of water in normal lumbar disks in adults by using the mean apparent diffusion coefficient (ADC) and to determine if a relationship exists between disk ADC and magnetic resonance (MR) findings of disk d ...
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Journal ArticleAcad Radiol · April 2005
RATIONALE AND OBJECTIVES: We sought to quantify patient preferences for mild, moderate, and severe low back pain via time-tradeoff analysis and utility measurement. MATERIALS AND METHODS: Forty-one patients being treated for low back pain in a tertiary car ...
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Journal ArticleInt Psychogeriatr · March 2005
OBJECTIVE: In this study, we examined 204 older depressed individuals for up to 64 months to determine factors related to depression outcome. We hypothesized that both presence of vascular brain lesions seen on baseline magnetic resonance imaging (MRI) sca ...
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Journal ArticleAJR Am J Roentgenol · December 2004
OBJECTIVE: The objective of this study was to examine the relative influence of manuscript characteristics and peer-reviewer attributes in the assessment of manuscripts. MATERIALS AND METHODS: Over a 6-month period, all major papers submitted to the Americ ...
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Journal ArticleAJR Am J Roentgenol · December 2004
OBJECTIVE: Gliosis refers to a range of glial cell transformations that vary according to specific brain pathologic states. Disease, however, is not a prerequisite for gliosis because glial reactivity may also be seen in regions of increased physiologic ac ...
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Journal ArticleAJR Am J Roentgenol · November 2004
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OBJECTIVE: The purpose of the study was to determine whether dynamic susceptibility contrast perfusion MRI allowed distinction of cerebral abscesses from cystic high-grade brain neoplasms. CONCLUSION: In this small preliminary study, dynamic susceptibility ...
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Journal ArticleRadiology · August 2004
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PURPOSE: To retrospectively measure the diffusion-weighted (DW) imaging characteristics of peritumoral hyperintense white matter (WM) and peritumoral normal-appearing WM, as seen on T2-weighted magnetic resonance (MR) images of infiltrative high-grade glio ...
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Journal ArticleAJR Am J Roentgenol · August 2004
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OBJECTIVE: We used diffusion tensor MRI to redefine the size of multiple sclerosis (MS) plaques on fractional anisotropy (FA) maps. MATERIALS AND METHODS: Thirty-six white matter (WM) plaques were identified in 20 patients with MS. Plaque FA was measured b ...
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Journal ArticleAJR Am J Roentgenol · August 2004
OBJECTIVE: The purpose of this study was to assess the clinical and radiologic features of tumor progression in children with trilateral retinoblastoma. MATERIALS AND METHODS: Clinical records of eight children with trilateral retinoblastoma were reviewed ...
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Journal ArticleAm J Psychiatry · July 2004
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OBJECTIVE: The purpose of this study was to determine whether microstructural abnormalities in the white matter of the dorsolateral prefrontal cortex are associated with late-life depression. METHOD: Seventeen elderly depressed subjects were compared with ...
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Journal ArticleNeuro Oncol · April 2004
Irinotecan is a topoisomerase I inhibitor previously shown to be active in the treatment of malignant glioma. We now report the results of a phase 1 trial of irinotecan plus BCNU, or 1,3-bis(2-chloroethyl)-1-nitrosourea, for patients with recurrent or prog ...
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Journal ArticleNeuro Oncol · April 2004
In preclinical studies, BCNU, or 1,3-bis(2-chloroethyl)-1-nitrosourea, plus CPT-11 (irinotecan) exhibits schedule-dependent, synergistic activity against malignant glioma (MG). We previously established the maximum tolerated dose of CPT-11 when administere ...
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Journal ArticleNeuroimage · March 2004
Diffusion tensor imaging (DTI) measures the displacement of water molecules across tissue components, thus providing information regarding the microstructure of cerebral white matter. Fractional anisotropy (FA), the degree to which diffusion is directional ...
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Journal ArticleBiol Psychiatry · February 15, 2004
BACKGROUND: There is a substantial body of research supporting the vascular depression hypothesis of late-life depression. To update this hypothesis so it incorporates recent research, we propose that the term subcortical ischemic vascular depression may b ...
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Journal ArticleCereb Cortex · February 2004
We used functional magnetic resonance imaging (fMRI) of a visual target detection (oddball) task to investigate age differences in neural activation for the detection of two types of infrequent events: visually simple items requiring a response shift (targ ...
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Journal ArticleRadiology · November 2003
Neuroimaging is an important part of the assessment of patients with hyperacute stroke. As new treatments that may reverse cerebral ischemia have been developed, the role of neuroimaging has changed from simply anatomic depiction of early infarction to ide ...
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Journal ArticleArch Gen Psychiatry · November 2003
CONTEXT: White matter hyperintensities (WMHs) are bright foci seen in the parenchyma of the brain on T2-weighted cranial magnetic resonance imaging (MRI) scans and are associated with geriatric depression. Because they are associated with age, they should ...
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Journal ArticleAJNR Am J Neuroradiol · October 2003
BACKGROUND AND PURPOSE: Compared with MR imaging, dynamic CT perfusion imaging covers only a fraction of the whole brain. An important assumption is that CT perfusion abnormalities correlate with total ischemic volume. The purpose of our study was to measu ...
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Journal ArticleJ Neurooncol · October 2003
TP-38 is a recombinant chimeric targeted toxin composed of the EGFR binding ligand TGF-alpha and a genetically engineered form of the Pseudomonas exotoxin, PE-38. After in vitro and in vivo animal studies that showed specific activity and defined the maxim ...
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Journal ArticleBiol Psychiatry · September 1, 2003
Previous studies have shown a reduction of orbital frontal cortex volume and an increase in magnetic resonance imaging signal hyperintensities in geriatric depression. We aimed to assess the relationship between subcortical gray- and deep white-matter lesi ...
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Journal ArticleAJR Am J Roentgenol · August 2003
OBJECTIVE: The purpose of the study was to examine change in volume of hyperintense white matter lesions in a cohort of community-dwelling elderly subjects without neuropsychiatric disease. SUBJECTS AND METHODS. One hundred seventeen volunteers underwent b ...
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Journal ArticleNeuroradiology · June 2003
We report dynamic CT perfusion imaging assessment of hemodynamics in a patient with a high-grade cerebral glioma and compare our results to those of previously published studies. ...
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Journal ArticleJ Clin Oncol · June 1, 2003
PURPOSE: We evaluated the usefulness of a treatment regimen that included high-dose chemotherapy (HDC) with autologous stem-cell rescue (ASCR) in patients with newly diagnosed pineoblastoma (PBL). PATIENTS AND METHODS: Twelve patients with PBL were initial ...
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Journal ArticleProg Neuropsychopharmacol Biol Psychiatry · May 2003
OBJECTIVE: Deep white matter hyperintense lesions are associated with advanced age and late-life depression. The authors examined where age-related cerebral lesions occurred in elderly depressed and healthy control subjects. METHODS: Eighty-seven depressed ...
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Journal ArticleNeurosurgery · May 2003
OBJECTIVE AND IMPORTANCE: We describe a case of brainstem cavernous angioma in which the neural tracts were evaluated before surgery by three-dimensional anisotropy contrast (3-DAC) magnetic resonance imaging. CLINICAL PRESENTATION: A 64-year-old man prese ...
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Journal ArticleJ Cogn Neurosci · April 1, 2003
Positron emission tomography data (Madden, Langley, et al., 2002) were analyzed to investigate adult age differences in the relation between neural activation and the lexical (word frequency) and sublexical (word length) components of visual word identific ...
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Journal ArticleAJNR Am J Neuroradiol · April 2003
BACKGROUND AND PURPOSE: Diffusion-weighted (DW) MR imaging is important in evaluating acute stroke, and knowledge of the signal intensity changes associated with acute stroke is valuable. Our purpose was to model the time course of the signal intensity of ...
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Journal ArticleJ Clin Oncol · February 15, 2003
PURPOSE: Temozolomide (Temodar; Schering-Plough Corp, Kenilworth, NJ) is an imidazole tetrazinone that undergoes chemical conversion to the active methylating agent 5-(3-methyltriazen-1yl)imidazole-4-carboximide under physiologic conditions. Previous studi ...
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Journal ArticleRadiology · January 2003
PURPOSE: To compare fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET) with the current standard, magnetic resonance (MR) imaging, to determine the sensitivity and specificity of FDG PET for detection of cerebral metastases and to dete ...
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Journal ArticleAm J Geriatr Psychiatry · 2003
OBJECTIVE: The authors correlated magnetic resonance imaging (MRI) lesion severity and mortality among depressed elderly patients. METHOD: They examined the association of mortality and deep white-matter hyperintensity (DWMH), periventricular hyperintensit ...
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Journal ArticlePsychiatry Res · December 30, 2002
While several studies are available on the immediate effects of marijuana and its active ingredient tetrahydrocannabinol (THC) on regional cerebral blood flow (rCBF), we examined the effects of intravenous infusion of THC on rCBF and behavior over a 120-mi ...
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Journal ArticleAJR Am J Roentgenol · December 2002
OBJECTIVE: The first purpose of this study was to compare the degree of anisotropy in compact white matter and noncompact white matter in each of three pediatric age groups using diffusion tensor imaging. We hypothesized that anisotropy would be higher in ...
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Journal ArticlePsychiatry Res · August 20, 2002
Brain magnetic resonance imaging (MRI) allows for quantitative assessment of hyperintense foci, which are seen with aging and various diseases. These foci, considered to represent lesions, are important in the study of various psychiatric illnesses, includ ...
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Journal ArticleAm J Med Genet · August 8, 2002
The purpose of the study was to consider MRI hyperintensities as a potential endophenotype for bipolar disorder (BPD) and to investigate Notch3 (CADASIL) as a candidate gene for BPD. MRI scans were performed on 21 members of a family with a high incidence ...
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Journal ArticleBrain Cogn · August 2002
Adult age differences in the neural systems mediating semantic (context-independent) memory were investigated using positron emission tomography (PET). Younger (20-29 years) and older (62-70 years) participants performed lexical decision (word/nonword disc ...
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Journal ArticleAJR Am J Roentgenol · July 2002
OBJECTIVE: We evaluated commercially available software that rapidly and automatically registers brain MR images on a clinical workstation, and we studied the accuracy of these registrations. SUBJECTS AND METHODS: Ten patients with a diagnosis of glioblast ...
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Journal ArticleRadiology · July 2002
PURPOSE: To determine if water diffusivity within lymphomas and high-grade astrocytomas correlates with cellularity. MATERIALS AND METHODS: Echo-planar diffusion-weighted magnetic resonance (MR) images obtained in 11 patients with brain lymphomas (19 lesio ...
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Journal ArticleJ Clin Oncol · May 1, 2002
PURPOSE: We conducted a phase II trial of carmustine (BCNU) plus the O(6)-alkylguanine-DNA alkyltransferase inhibitor O(6)-benzylguanine (O(6)-BG) to define the activity and toxicity of this regimen in the treatment of adults with progressive or recurrent ...
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Journal ArticleRadiology · March 2002
PURPOSE: To determine whether the normal-appearing white matter (NAWM) regions surrounding and remote from multiple sclerosis (MS) plaques have abnormal diffusional anisotropy and to compare anisotropy maps with apparent diffusion coefficient (ADC) maps fo ...
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Journal ArticleAJR Am J Roentgenol · March 2002
OBJECTIVE: The purpose of this study was to compare permeability measurements in high-grade and low-grade glial neoplasms using a T2(*)-weighted method. Our hypothesis was that permeability measurements using a T2(*)-weighted technique would show permeabil ...
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Journal ArticleAJNR Am J Neuroradiol · March 2002
In this report, we describe the appearance of the spinal vertebral body and epidural abscesses in a patient who underwent diffusion-weighted imaging of the spine and CT-guided aspiration of one of the abscesses. The abscesses were hyperintense relative to ...
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Journal ArticlePsychol Aging · March 2002
Positron emission tomography (PET) was used to examine adult age differences in neural activation during visual search. Target detection was less accurate for older adults than for younger adults, but both age groups were successful in using color to guide ...
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Journal ArticleJ Clin Oncol · March 1, 2002
PURPOSE: To assess the efficacy and toxicity of intraresection cavity (131)I-labeled murine antitenascin monoclonal antibody 81C6 and determine its true response rate among patients with newly diagnosed malignant glioma. PATIENTS AND METHODS: In this phase ...
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Journal ArticleAJNR Am J Neuroradiol · February 2002
We describe the use of a CT-based method of cerebral perfusion imaging, dynamic CT perfusion imaging, for the pre- and postprocedural assessment of cerebral blood flow in a patient with symptomatic middle cerebral artery occlusive disease who underwent bal ...
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Journal ArticleEur J Radiol · February 2002
PURPOSE: To determine the frequency of hypointense appearance of dural sinus thrombosis on T2-weighted images, which may mimic a normal flow void, and when possible correlate with appearance on T1-weighted images. METHODS AND MATERIALS: Retrospective revie ...
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Journal ArticleJ Comput Assist Tomogr · 2002
Anisotropy measurements were obtained from periventricular foci of T2 prolongation and adjacent normal-appearing white matter in a case of B12 leukoencephalopathy. Measurements were compared with mean values from two age-matched control subjects. Anisotrop ...
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Journal ArticleRadiology · January 2002
PURPOSE: To measure mean cerebral blood flow (CBF) in ischemic and nonischemic territories and in low-attenuation regions in patients with acute stroke by using deconvolution-derived hemodynamic imaging. MATERIALS AND METHODS: Twelve patients with acute mi ...
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Journal ArticleProg Brain Res · 2002
Whether or not severe febrile seizures in infancy cause hippocampal injury and subsequent medial temporal sclerosis is an often debated question in epilepsy. Recent magnetic resonance imaging (MRI) of infants suffering from febrile seizures has provided pr ...
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Journal ArticleBrain Tumor Pathol · 2002
Advances in the immunohistochemical detection of neuron-specific and neuronal-associated antigens have resulted in the discovery of neuronal elements in certain primary human brain tumors. The results have been not only to expand what neuropathologists com ...
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Journal ArticleAJNR Am J Neuroradiol · 2002
BACKGROUND AND PURPOSE: The potential pitfalls in the diagnosis of dural sinus thrombosis include the presence of arachnoid granulations, intrasinus fibrotic bands (so-called septa), and hypoplasia or aplasia of the dural sinuses. The purpose of this study ...
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Journal ArticleDepress Anxiety · 2002
Geriatric depression is associated with significant functional impairment. There is also growing evidence linking vascular brain changes to depression in late life. We sought to examine the relationship between cerebrovascular disease and impairment in bas ...
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Journal ArticleAnn Neurol · November 2001
Central nervous system complications are common in stem cell transplant recipients, but selective involvement of the medial temporal area is unusual. The 5 patients reported here presented after stem cell transplantation with increased hippocampal T2 signa ...
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Journal ArticleNeuro Oncol · October 2001
Both Gliadel wafers [1,3-bis(2-chloroethyl)-1-nitrosourea] and temozolomide (TEMO) have been shown in independent studies to prolong survival of patients with recurrent malignant glioma following surgery and radiotherapy. On the basis of preclinical eviden ...
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Journal ArticleAJNR Am J Neuroradiol · September 2001
BACKGROUND AND PURPOSE: Previous studies have shown that lesions in posterior reversible encephalopathy syndrome are often isointense on diffusion-weighted MR images. We hypothesized that 1) apparent diffusion coefficient (ADC) maps using various threshold ...
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Journal ArticleBiol Psychiatry · August 15, 2001
BACKGROUND: Suicide represents a major health problem in the United States, and prediction of suicide attempts is difficult. No structural neuroimaging studies have been done to specifically examine findings in patients who have attempted suicide. The obje ...
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Journal ArticleAJNR Am J Neuroradiol · August 2001
BACKGROUND AND PURPOSE: Rasmussen encephalitis is a chronic, progressive encephalitis that manifests as an abrupt-onset, intractable seizure disorder in previously developmentally normal children. The objectives of the current study were to characterize th ...
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Journal ArticleBiol Psychiatry · August 1, 2001
BACKGROUND: Diffusion tensor imaging (DTI) of brain tissue measures the apparent diffusion coefficient (ADC), or isotropic diffusion, and anisotropy, or diffusion as influenced by tissue structure. We hypothesized that hyperintensities, when compared with ...
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Journal ArticleBrain Pathol · July 2001
The March COM: A 16 year old female presented with headaches and cerebellar dysfunction. MR images showed a mass lesion of the right cerebellar hemisphere with mass effect on the medulla. The mass exhibited a striated pattern of alternating isointense and ...
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Journal ArticleBiol Psychiatry · May 1, 2001
BACKGROUND: Early studies using magnetic resonance (MR) imaging suggested that subcortical vascular changes are more prevalent in late-life depression and that they may play a role in the pathophysiology of depression. Studying the location of the lesion r ...
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Journal ArticleNeuroradiology · May 2001
The combination of high signal and reduced apparent diffusion coefficients (ADC) within abscesses on diffusion-weighted MRI (DWI) has been reported as characteristic of abscesses, and useful for distinguishing them from cystic or necrotic neoplasms. To ass ...
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Journal ArticleRadiology · May 2001
PURPOSE: To describe the changes in brain water diffusibility in five anatomic locations in children with neurofibromatosis type 1 (NF 1) compared with these changes in control subjects and to describe the water diffusibility changes associated with hyperi ...
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Journal ArticleCancer · May 1, 2001
Even with novel chemotherapeutic agents and external beam radiation therapy, the prognosis of neoplastic meningitis secondary to malignant melanoma is still dismal. The authors report a case study of a 46-year-old white female who presented with progressiv ...
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Journal ArticleJ Neuroimaging · April 2001
Diffusion-weighted magnetic resonance imaging (DWI) detects acute ischemic infarcts with high lesion conspicuity. Determination of infarct age is difficult on DWI alone because infarct signal intensity (SIinfarct) on DWI is influenced by T2 properties ("T2 ...
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Journal ArticleNeuroradiology · March 2001
Previously reported methods of dynamic, contrast-enhanced, CT perfusion imaging in acute stroke have been promising but substantially limited by their dependence on very rapid rates of injection (typically 10-20 ml/s in an arm vein). Newly available deconv ...
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Journal ArticleRadiology · March 2001
PURPOSE: To compare diffusion tensor magnetic resonance imaging with conventional T2-weighted imaging for evaluation of white matter changes in patients with Krabbe disease. MATERIALS AND METHODS: In eight patients with Krabbe disease and eight age-matched ...
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Journal ArticleAJR Am J Roentgenol · March 2001
OBJECTIVE: The purpose of this study was to examine the frequency of change in size of pineal cysts on serial MR studies. MATERIALS AND METHODS: Thirty-two patients (19 females, 13 males) with a diagnosis of pineal cyst at any time who underwent brain MR i ...
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Journal ArticleSemin Radiat Oncol · January 2001
Angiogenesis, the growth of new blood vessels, is a critical component in the development of solid tumors. Over the last decade, progress in the study of the biology of angiogenesis has led to identification of a large number of molecules that promote, par ...
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Journal ArticleAJNR Am J Neuroradiol · 2001
BACKGROUND AND PURPOSE: Our purpose was to compare diffusion tensor MR and magnetization transfer imaging in assessing normal-appearing white matter (WM) regions in multiple sclerosis (MS). METHODS: Diffusion tensor, magnetization transfer, and conventiona ...
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Journal ArticleAmerican Journal of Neuroradiology · 2001
BACKGROUND AND PURPOSE: Rasmussen encephalitis is a chronic, progressive encephalitis that manifests as an abrupt-onset, intractable seizure disorder in previously developmentally normal children. The objectives of the current study were to characterize th ...
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Journal ArticleCan Assoc Radiol J · December 2000
A number of entities other than acute cerebral infarction can produce bright signal intensity on diffusion-weighted magnetic resonance images, and an understanding of the range of possible diagnoses for these hyperintense lesions is important for radiologi ...
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Journal ArticleEur J Radiol · December 2000
PURPOSE: Our purpose was to show the computed tomography (CT) and magnetic resonance (MR) imaging features of vertex epidural hematomas (EDHs) and emphasize pitfalls in the diagnosis of this entity. SUBJECTS AND METHODS: The neuroradiologic studies of four ...
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Journal ArticleJ Clin Oncol · November 15, 2000
PURPOSE: To determine the maximum-tolerated dose (MTD) of iodine-131 ((131)I)-labeled 81C6 antitenascin monoclonal antibody (mAb) administered clinically into surgically created resection cavities (SCRCs) in malignant glioma patients and to identify any ob ...
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Journal ArticleNeuroradiology · November 2000
We qualitatively assessed the regional distribution of vasogenic edema in a case of postpartum eclampsia. Although diffusion-weighted imaging showed no abnormalities, bilateral high signal was seen on T2-weighted images and apparent diffusion coefficient ( ...
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Journal ArticleJ Clin Oncol · October 15, 2000
PURPOSE: The major mechanism of resistance to alkylnitrosourea therapy involves the DNA repair protein O(6)-alkylguanine-DNA alkyltransferase (AGT), which removes chloroethylation or methylation damage from the O(6) position of guanine. O(6)-benzylguanine ...
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Journal ArticleAJR Am J Roentgenol · August 2000
OBJECTIVE: The purpose of our study was to test the hypothesis that the apparent diffusion coefficient (ADC) of normal-appearing white matter increases with advancing age. SUBJECTS AND METHODS: We selected 38 patients with normal MR imaging findings from 3 ...
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Journal ArticleInvest Radiol · July 2000
RATIONALE AND OBJECTIVES: The objective of the two pivotal phase 3 studies was to evaluate the safety and efficacy of OptiMARK (Gd-DTPA-bis(methoxyethylamide) [Gd-DTPA-BMEA]) compared with Magnevist (Gd-DTPA) in magnetic resonance imaging of the central ne ...
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Journal ArticleActa Neuropathol · May 2000
Gliomas of the optic nerve, although typically of pilocytic (WHO grade I) histology, can present within the spectrum of astrocytic neoplasia including glioblastoma (WHO grade IV). In certain cases, histologic features alone make the distinction between pil ...
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Journal ArticleAJR Am J Roentgenol · March 2000
OBJECTIVE: The purpose of this study was to compare MR imaging features of gangliogliomas in children less than 10 years old with those seen in patients at least 10 years old. MATERIALS AND METHODS: Our study population consisted of 15 female patients and ...
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Journal ArticleInt J Radiat Oncol Biol Phys · March 1, 2000
PURPOSE: The objective of this study was to perform the dosimetry and evaluate the dose-response relationships in newly diagnosed patients with malignant brain tumors treated by direct injections of (131)I-labeled 81C6 monoclonal antibody (MAb) into surgic ...
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Journal ArticleAJR Am J Roentgenol · February 2000
This review has highlighted some of the disease processes that produce diagnostic difficulty in the emergency neuroradiology setting. Because radiologists are often the first individuals to consider these entities, they must be familiar with the clinical f ...
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Journal ArticleJ Addict Dis · 2000
BACKGROUND: The focus of this report is on the possible role that the age of first use of marijuana may play on brain morphology and function. METHODS: Magnetic resonance imaging (MRI) and positron emission tomography (PET) were utilized to study 57 subjec ...
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Journal ArticleAJR Am J Roentgenol · December 1999
The major clinical use of diffusion-weighted imaging to date has been in evaluation of cerebral infarction, at which it excels. However, diffusion-weighted imaging has also shown promise for other applications, ranging from quantitative analysis of biologi ...
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Journal ArticleEmergency Radiology · December 1, 1999
Magnetic resonance (MR) of the central nervous system has few, but important indications for use in the acute setting. This report reviews the few true current clinical indications for emergency MR imaging, including ruling out spinal cord compression, vas ...
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Journal ArticleAJR Am J Roentgenol · October 1999
OBJECTIVE: Our aim was to determine whether the contrast between white matter lesions and normal-appearing white matter in fast spin-echo fluid-attenuated inversion recovery (FLAIR) images can be improved by lengthening the effective TE and the echo train ...
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Journal ArticleJ Cogn Neurosci · September 1999
We used H(2)15O positron emission tomography (PET) to measure age-related changes in regional cerebral blood flow (rCBF) during a verbal recognition memory task. Twelve young adults (20 to 29 years) and 12 older adults (62 to 79 years) participated. Separa ...
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Journal ArticleRadiol Clin North Am · May 1999
The recent advances made in CT and MR imaging have led to increased accuracy in making a number of diagnoses in the emergency room setting. Increasingly, radiologists are asked to perform these studies and accurately interpret the findings, which often hav ...
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Journal ArticleJ Clin Oncol · May 1999
PURPOSE: To determine the activity, toxicity, and pharmacokinetics of irinotecan (CPT-11, Camptosar; Pharmacia & Upjohn, Kalamazoo, MI) in the treatment of adults with progressive, persistent, or recurrent malignant glioma. PATIENTS AND METHODS: Patients w ...
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Journal ArticleArch Pathol Lab Med · April 1999
BACKGROUND: From both epidemiologic and pathologic viewpoints, gangliogliomas exhibiting components of giant cell glioblastomas are extraordinary neoplasms. We report herein the case of a 6-year-old girl who presented initially with a World Health Organiza ...
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Journal ArticleAJR Am J Roentgenol · April 1999
OBJECTIVE: The purpose of this study was to correlate 18F-fluorodeoxyglucose positron emission tomography (PET) and MR imaging features of cerebral gangliogliomas before and after PET-MR image registration. CONCLUSION: After registration of PET and MR imag ...
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Journal ArticleHum Brain Mapp · 1999
Adult age differences are frequently observed in the performance of memory tasks, but the changes in neural function mediating these differences are largely unknown. We used (H2)15O positron emission tomography (PET) to measure changes in regional cerebral ...
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Journal ArticleLupus · 1999
OBJECTIVE: To describe the frequency, clinical, and laboratory features of patients diagnosed with multiple sclerosis (MS) or MS-like illnesses (MSL) among a large, prospectively followed cohort of anti-phospholipid antibody (aPL)-positive patients. METHOD ...
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Journal ArticleJ Clin Oncol · December 1998
PURPOSE: We evaluated the response to Temodal (Schering-Plough Research Institute, Kenilworth, NJ) of patients with newly diagnosed malignant glioma, as well as the predictive value of quantifying tumor DNA mismatch repair activity and O6-alkylguanine-DNA ...
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Journal ArticleAm J Psychiatry · November 1998
OBJECTIVE: Imaging studies of patients with bipolar disorder demonstrate changes in deep white matter and subcortical gray nuclei that are seen as focal hyperintensities on T2-weighted magnetic resonance imaging (MRI). The objective of this study was to ex ...
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Journal ArticlePediatr Radiol · August 1998
The purpose of this report is to describe imaging findings in activated protein C resistance, a hereditary cause of recurrent thrombosis. The case described was unusual in that a neonate was affected, whereas the vast majority of cases occur in adulthood. ...
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Journal ArticleEur J Radiol · July 1998
Schistosomal spinal cord involvement is a rare complication of infection by Schistosoma mansoni. This work reports the MR imaging findings in a patient with schistosomal myelitis involving the lower spinal cord and conus medullaris. MR imaging showed a foc ...
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Journal ArticleJ Clin Oncol · June 1998
PURPOSE: To determine the maximum-tolerated dose (MTD) of iodine 131 (131I)-labeled 81C6 monoclonal antibody (mAb) in brain tumor patients with surgically created resection cavities (SCRCs) and to identify any objective responses to this treatment. METHODS ...
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Journal ArticleNeurosurg Focus · April 15, 1998
In this study, the authors sought to investigate the response rate and toxicity of carboplatin in patients with progressive low-grade glioma (LGG). Thirty-two patients with progressive LGG were treated with carboplatin at a dosage of 560 mg/m(2). Treatment ...
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Journal ArticleRadiology · April 1998
PURPOSE: To assess the patterns of abnormal neuroradiologic findings in patients with a hypercoagulable state related to activated protein C (APC) resistance. MATERIALS AND METHODS: Records in 23 patients with a hypercoagulable state related to APC resista ...
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Journal ArticleAJNR Am J Neuroradiol · April 1998
PURPOSE: The purpose of this study was to determine the frequency and types of abnormalities at arteriography in patients with antiphospholipid antibodies (APA) and ischemic cerebrovascular events. METHODS: Twenty-three patients with APA and ischemic cereb ...
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Journal ArticleAJR Am J Roentgenol · February 1998
OBJECTIVE: The purpose of this study was to report the association of dural sinus thrombosis with a hypercoagulable state associated with activated protein C resistance. CONCLUSION: In our small study population, hemorrhagic venous infarction was common (t ...
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Journal ArticleEur J Radiol · February 1998
We report the MR imaging findings in a patient with primary antiphospholipid syndrome, adrenal infarction and widespread thrombosis involving abdominal, pelvic, and pulmonary vessels. This syndrome should be suspected in patients with thromboses and organ ...
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Journal ArticleEur J Radiol · February 1998
The CNS is rarely the first site of metastasis for rhabdomyosarcoma. CNS involvement is uncommon, and usually seen as leptomeningeal spread after development of pulmonary metastases. We present the imaging findings in a 13-year-old boy in whom a large intr ...
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Journal ArticleAJR Am J Roentgenol · February 1998
OBJECTIVE: The purpose of this study was to determine the patterns of non-CNS thromboses in patients with a hypercoagulable state associated with antiphospholipid antibodies (APA). MATERIALS AND METHODS: A search of our institution's clinical coagulation a ...
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Journal ArticleJ Comput Assist Tomogr · 1998
PURPOSE: Our aim was to determine the thoracic manifestations of patients with antiphospholipid antibodies (APAs). METHOD: We performed a retrospective review of the clinical records and thoracic imaging studies of 88 patients (63 women, 25 men; mean age 4 ...
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Journal ArticleEmergency Radiology · December 1, 1997
For some common nontraumatic neurologic conditions encountered in the emergency setting, the clinical history is important in helping the radiologist to choose the most appropriate imaging study. The clinical and radiologic features of four such conditions ...
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Journal ArticleAJR Am J Roentgenol · October 1997
The causes of stroke in young adults differ substantially from those in older adults. In many instances, the diagnosis can be made by taking a clinical history and performing laboratory studies (e.g., in patients who have multiple thromboses associated wit ...
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Journal ArticleRadiol Clin North Am · September 1997
Central nervous system complications in AIDS patients are common and often the cause of severe morbidity and mortality. Most symptomatic central nervous system complications in AIDS patients involve the brain, principally in the form of HIV encephalitis, v ...
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Journal ArticleAJR Am J Roentgenol · September 1997
OBJECTIVE: We categorized the MR imaging characteristics of intracranial epidermoid tumors. MATERIALS AND METHODS: MR images from 23 cases of intracranial epidermoid tumors were reviewed retrospectively. Signal intensities of tumor relative to surrounding ...
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Journal ArticleClin Radiol · June 1997
As intracranial MR angiography becomes more widely used and spatial resolution improves, anomalies at the Circle of Willis which have been previously well described on angiographic studies and anatomic dissections will become more frequently appreciated by ...
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Journal ArticleAJNR Am J Neuroradiol · February 1997
We report the MR imaging findings in two patients with solitary craniocerebral plasmacytoma, a benign plasma cell tumor that can arise from the skull, the dura, or, rarely, the brain. In both patients, the lesion was extraaxial and nearly isointense with g ...
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Journal ArticleHum Brain Mapp · 1997
Regional cerebral blood flow (rCBF) was measured using H2(15)O and positron emission tomography (PET) to test the hypothesis that age-related changes in the pattern of rCBF activation would be greater under divided attention conditions than under selective ...
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Journal ArticleAJR Am J Roentgenol · December 1996
OBJECTIVE: The purpose of this study was to determine the spectrum of neuroradiologic findings in patients with antiphospholipid antibodies (APA) and to compare findings in systemic lupus erythematosus (SLE) and non-SLE patients. MATERIALS AND METHODS: We ...
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Journal ArticleAJNR Am J Neuroradiol · August 1996
Ten weeks after undergoing bone marrow transplantation for metastatic lymphoma of the parotid gland, a 9-year-old girl became disoriented and had tremor and myoclonus in the context of graft-versus-host disease (GVHD). MR images showed abnormal signal prim ...
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Journal ArticleNeuroradiology · May 1996
A 60-year-old man developed hemiballismus due to an intracranial hemorrhage involving the subthalamic nucleus 8 weeks after orthotopic liver transplantation. The hemorrhage was thought to be due to alterations in cerebral blood flow following a period of h ...
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Journal ArticleAJNR Am J Neuroradiol · April 1996
PURPOSE: To demonstrate the spectrum of CT and MR imaging findings in patients with Wegener granulomatosis and to determine how often these findings could be attributed to either direct extension from paranasal or orbital disease sites, remote granulomas, ...
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Journal ArticleAJNR Am J Neuroradiol · April 1996
PURPOSE: To determine the MR features of spinal angiolipomas and to compare these findings with their histologic appearance. METHODS: The MR examinations of three patients with surgically proved angiolipomas were reviewed for tumor location and extent, sig ...
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Journal ArticleAJR Am J Roentgenol · April 1996
OBJECTIVE: The purpose of this study was to define patterns of Wegener's granulomatosis (WG) orbital disease involvement. SUBJECTS AND METHODS: We evaluated the orbital examinations of 14 WG patients (CT for nine, MR imaging for three, and both CT and MR i ...
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Journal ArticleNeuroimage · April 1996
We used H215O PET to investigate adult age differences in regional cerebral blood flow (rCBF) during the performance of a visual word identification task. The study participants were 20 healthy, right-handed men: 10 young adults between 18 and 27 years of ...
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Journal ArticleDev Med Child Neurol · March 1996
Sensorineural hearing loss has long been known to be a clinical consequence of kernicterus. Brainstem auditory evoked potentials (BAEPs) that occur in hyperbilirubinemic infants, can be reversed in the neonatal period by exchange transfusion. The case was ...
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Journal ArticleNeurology · March 1996
We present the clinical and neuroradiologic findings of a 31-year-old man with Kearns-Sayre syndrome- related dilated cardiomyopathy who experienced a left middle cerebral artery territory stroke, thought to be due to cardiogenic embolism. The rate of clin ...
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Journal ArticleJ Comput Assist Tomogr · 1996
OBJECTIVE: The purpose of this study was to determine if typical clinical and neuroradiologic patterns exist in patients with spontaneous vertebral artery (VA) dissection. MATERIALS AND METHODS: The medical records and neuroradiologic examinations of 14 pa ...
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Journal ArticleAJNR Am J Neuroradiol · 1996
PURPOSE: To demonstrate the neuroradiologic findings in patients with polyarteritis nodosa. METHODS: A review of hospital records for a 10-year period revealed 50 patients with a discharge diagnosis of polyarteritis nodosa. Thirteen patients had undergone ...
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Journal ArticleAJR Am J Roentgenol · November 1995
Dissection of either the internal carotid artery or the vertebral artery (cervicocephalic arterial dissection) was once considered uncommon. However, in the past few decades, it has been increasingly recognized as a cause of stroke in young and middle-aged ...
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Journal ArticleAJR Am J Roentgenol · August 1995
OBJECTIVE: Antiphospholipid antibodies are immunoglobulins that cross-react with phospholipid within cell membranes. These antibodies have been associated with a hypercoagulable state manifested by early stroke, frequent arterial and venous thromboses, rec ...
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Journal ArticleAJR Am J Roentgenol · August 1995
OBJECTIVE: The primary antiphospholipid syndrome consists of recurrent thromboses, early stroke, recurrent fetal loss, and livedo reticularis in patients with antiphospholipid antibodies and without systemic lupus erythematosus. The purpose of this study w ...
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Journal ArticleAJNR Am J Neuroradiol · May 1995
PURPOSE: To determine the spectrum of MR findings in patients with mitochondrial myopathy and correlate them with central nervous system symptoms and signs. METHODS: We performed a prospective evaluation of the MR findings of eight patients with mitochondr ...
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Journal ArticleAJNR Am J Neuroradiol · April 1995
Fucosidosis is a rare lysosomal storage disorder with the clinical features of mental retardation, cardiomegaly, dysostosis multiplex, progressive neurologic deterioration, and early death. The neuroradiologic findings in two patients are reported, and inc ...
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Journal ArticleArch Pathol Lab Med · April 1995
A case of an intracranial dermoid cyst containing shadow cells is presented. This case expands the group of lesions in which shadow cells, indicative of hair matrical differentiation, have been described. ...
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Journal ArticleJ Comput Assist Tomogr · 1995
OBJECTIVE: Our aim was to determine the frequency with which a lesion responsible for hemiballismus was detectable on CT and MR examinations. MATERIALS AND METHODS: The CT and MR examinations of six patients with hemiballismus were reviewed. Three patients ...
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OtherJ Comput Assist Tomogr · 1995
We report development of an intracranial epidermoid cyst 2 years after a depressed skull fracture. The epidermoid cyst is presumed to be the result of introduction of epidermal elements at the time of trauma. Post-traumatic intracranial epidermoid cysts ar ...
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Journal ArticleJ Comput Assist Tomogr · 1995
OBJECTIVE: Our goal was to characterize the CT and MR features of supratentorial ependymomas and subependymomas. MATERIALS AND METHODS: The CT or MRI examinations of 11 supratentorial ependymomas (average patient age: 16 years) and 3 supratentorial subepen ...
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Journal ArticleJ Comput Assist Tomogr · 1995
Pituitary apoplexy almost invariably occurs following hemorrhage into a pituitary neoplasm. We report a case in which pituitary apoplexy occurred in the setting of, and probably secondary to, dissection of the internal carotid artery. ...
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Journal ArticleJ Comput Assist Tomogr · 1995
OBJECTIVE: Our goal was to demonstrate the spectrum of neuroradiologic (CT, MR, and angiographic) findings in craniocervical arterial dissection (CAD) related to exercise or sporting activities and compare the diagnostic utility of CT, MRI, and MR angiogra ...
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Journal ArticleAmerican Journal of Neuroradiology · January 1, 1995
Fucosidosis is a rare lysosomal storage disorder with the clinical features of mental retardation, cardiomegaly, dysostosis multiplex, progressive neurologic deterioration, and early death. The neuroradiologic findings in two patients are reported, and inc ...
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Journal ArticleAJNR Am J Neuroradiol · November 1994
PURPOSE: To correlate the MR findings in transverse myelitis secondary to systemic lupus erythematosus with clinical findings during disease exacerbation and remission. METHODS: Four patients (ages 33 to 47 years) with episodes of transverse myelitis secon ...
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Journal ArticleRadiology · August 1994
PURPOSE: To study neuroradiologic findings in patients with hypercoagulability due to antiphospholipid antibodies (APAs). MATERIALS AND METHODS: Retrospective review of abnormal angiographic, computed tomographic, and magnetic resonance imaging findings wa ...
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Journal ArticleJ Comput Assist Tomogr · 1994
OBJECTIVE: Our goal was to describe the neuroradiologic findings in hemorrhagic venous infarction related to a hypercoagulable state caused by antiphospholipid antibodies (aPA). MATERIALS AND METHODS: Magnetic resonance imaging was performed on two patient ...
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Journal ArticleAJR Am J Roentgenol · January 1994
OBJECTIVE: Creutzfeldt-Jakob disease is a rare dementing illness that usually affects older adults. Currently, neuroradiologic examinations play a minor role in the diagnosis of Creutzfeldt-Jakob disease. Several single case reports have noted a distinctiv ...
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Journal ArticleJ Comput Assist Tomogr · 1994
Contrast angiography is the standard means of diagnosing spinal dural arteriovenous fistulas. We present a patient in whom a spinal dural arteriovenous fistula was demonstrated on phase contrast MR angiography. ...
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Journal ArticleJ Neurol Neurosurg Psychiatry · September 1992
Transverse myelopathy is an uncommon complication of systemic lupus erythematosus (SLE). Three patients with SLE are reported who developed transverse myelopathy, including the neuropathological findings in one patient on whom necropsy was performed. Parap ...
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Journal ArticleAm Fam Physician · February 1991
Tuberous sclerosis is an inherited disorder characterized by a triad of signs--mental retardation, seizures and adenoma sebaceum. The hamartomas that commonly affect multiple organ systems can be seen on plain film radiography. Computed tomography and ultr ...
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Journal ArticleAm Fam Physician · August 1989
This benign bone tumor is locally invasive and has a high rate of recurrence. Three-quarters of cases present before age 30. The characteristic plain film finding is a centrally located lytic lesion, usually in the metaphysis or metadiaphyseal region of a ...
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Journal ArticlePostgrad Med · October 1983
Anorexia nervosa appears to be on the rise, perhaps in part due to the cultural ideal of a thin figure. The anorectic is typically a highly motivated, over-compliant adolescent girl or young woman who has had problems with self-image and social interaction ...
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