Journal articleAJR Am J Roentgenol · August 2018
OBJECTIVE: The purpose of this study was to assess the rate of inadvertent injection into the retrodural space of Okada during CT fluoroscopy-guided interlaminar epidural steroid injection in the cervical spine. MATERIALS AND METHODS: Images from cases of ...
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Journal articleHeadache · July 2018
OBJECTIVE: To discuss common myths and misperceptions about spontaneous intracranial hypotension (SIH), focusing on common issues related to diagnosis and treatment, and to review the evidence that contradicts and clarifies these myths. BACKGROUND: Recogni ...
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Journal articleAJR Am J Roentgenol · December 2017
OBJECTIVE: The objective of this study is to describe the anatomic and imaging features of CSF venous fistulas, which are a recently reported cause of spontaneous intracranial hypotension (SIH). MATERIALS AND METHODS: We retrospectively reviewed the record ...
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Journal articleAJR Am J Roentgenol · September 2017
OBJECTIVE: The objective of this study is to determine the rate of inadvertent dural puncture during CT fluoroscopy-guided cervical interlaminar epidural corticosteroid injection. In addition, in a subanalysis, we aim to assess the rate of inadvertent dura ...
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Journal articleCurr Pain Headache Rep · August 2017
PURPOSE OF REVIEW: The purpose of this study is to provide an update on recent developments in the understanding, diagnosis, and treatment of spontaneous intracranial hypotension (SIH). RECENT FINDINGS: SIH is an important cause of headaches caused by spin ...
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Journal articleAJR Am J Roentgenol · December 2016
OBJECTIVE: The objective of our study was to determine whether the presence of individual imaging signs of spontaneous intracranial hypotension (SIH) is correlated with increasing duration of headache symptoms. Of particular interest is the relationship of ...
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Journal articleCephalalgia · November 2016
Objectives To determine the proportion of patients with spontaneous intracranial hypotension (SIH) who had a cerebrospinal fluid (CSF) pressure >6 cm H2O and to investigate the clinical and imaging variables associated with CSF pressure ( PCSF) in this con ...
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Journal articleAJNR Am J Neuroradiol · October 2016
BACKGROUND AND PURPOSE: Epidural blood patch treatment of spontaneous intracranial hypotension arising from ventral CSF leaks can be difficult secondary to challenges in achieving ventral spread of patching material. The purpose of this study was to determ ...
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Journal articleAJNR Am J Neuroradiol · July 2016
CSF-venous fistula is a recently reported cause of spontaneous intracranial hypotension that may occur in the absence of myelographic evidence of CSF leak. Information about this entity is currently very limited, but it is of potential importance given the ...
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Journal articleAJNR Am J Neuroradiol · July 2016
BACKGROUND AND PURPOSE: Patients with spontaneous intracranial hypotension often exhibit low CSF pressure and changes on brain MR imaging and/or evidence of CSF leak on myelography. We investigated whether individual imaging signs of spontaneous intracrani ...
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Journal articleAJNR Am J Neuroradiol · July 2016
BACKGROUND AND PURPOSE: Atypical clinical presentations of spontaneous intracranial hypotension include obtundation, memory deficits, dementia with frontotemporal features, parkinsonism, and ataxia. The purpose of this study was to compare clinical and ima ...
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Journal articleAJR Am J Roentgenol · January 2016
OBJECTIVE: Spinal leakage of CSF causes almost all cases of spontaneous intracranial hypotension. Leak detection and localization are important for both diagnosis and treatment. The myelographic appearance of the leaks may vary, however, depending on the c ...
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Journal articleAJNR Am J Neuroradiol · May 2015
BACKGROUND AND PURPOSE: Inadvertent intravascular injection during epidural steroid injection can result in complications and has been investigated previously with conventional fluoroscopy, but not CT fluoroscopy. The purpose of this study was to determine ...
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Journal articleClin Nucl Med · March 2015
A 58-year-old woman with a calcified disk extrusion causing severe spinal stenosis underwent T8 to T9 diskectomy and spinal fusion. A postoperative pseudomeningocele was treated with lumbar drain and fibrin glue. Performed for persistent right pleural effu ...
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Journal articleJ Neurosurg Spine · November 2014
OBJECT: Cerebrospinal fluid leaks due to unrecognized durotomy during spinal surgery are often managed with a second surgery for dural closure. CT-guided percutaneous patching targeted to the dural defect offers an alternative to surgery since it can be pe ...
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Journal articleAJNR Am J Neuroradiol · June 2014
Rebound intracranial hypertension is a complication of epidural blood patching for treatment of intracranial hypotension characterized by increased intracranial pressure, resulting in potentially severe headache, nausea, and vomiting. Because the symptoms ...
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Journal articleAJNR Am J Neuroradiol · January 2013
BACKGROUND AND PURPOSE: There is a paucity of information present in the current literature with regard to the role of SPMI performance in academic radiology centers. Our aim was to evaluate the current practice patterns for the performance of SPMIs in aca ...
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Journal articleAJNR Am J Neuroradiol · 2013
BACKGROUND AND PURPOSE: Spinal meningeal diverticula have been implicated in the pathogenesis of spontaneous intracranial hypotension and have been proposed as both diagnostic features of and therapeutic targets for the condition. We compared the prevalenc ...
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Journal articleAJNR Am J Neuroradiol · November 2012
BACKGROUND AND PURPOSE: Selecting a lower tube current for CT fluoroscopic spine injections is a method of radiation dose reduction. Ideally tube current should be tailored to the patient's body habitus, but a greater influence on tube current may be the p ...
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Journal articleAJNR Am J Neuroradiol · August 2012
BACKGROUND AND PURPOSE: Cervical epidural steroid injections are approached with trepidation because of concerns over safety, including direct spinal cord injury. CT fluoroscopy is an alternative to conventional fluoroscopy that could potentially help redu ...
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Journal articleJournal of Surgical Radiology · December 1, 2011
Introduction The Chiari I malformation is a rare pathological condition that is characterized by a downward herniation of the cerebellar tonsils and brainstem through the foramen magnum. The transformation from an asymptomatic to symptomatic Chiari I malfo ...
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Journal articleAJR Am J Roentgenol · October 2011
OBJECTIVE: The purpose of this article is to compare the radiation dose of conventional fluoroscopy-guided lumbar epidural steroid injections (ESIs) and CT fluoroscopy (CTF)-guided lumbar ESI using both clinical data and anthropomorphic phantoms. MATERIALS ...
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Journal articleJ Neurosurg · September 2011
In the scientific literature, syringohydromyelia has only rarely been reported in association with spontaneous intracranial hypotension. Management of the syringohydromyelia in these patients has heretofore involved relatively invasive surgical procedures. ...
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Journal articleAJNR Am J Neuroradiol · May 2011
BACKGROUND AND PURPOSE: Optimal diagnosis and management of spontaneous intracranial hypotension remains uncertain. CT-guided blood patching has been described but has not been evaluated in larger case series. We sought to evaluate the efficacy of CT-guide ...
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Journal articleAJR Am J Roentgenol · October 2010
OBJECTIVE: CT fluoroscopy-assisted cervical transforaminal steroid injection is an effective therapeutic option for cervical radiculopathy, yet it is approached with trepidation by some interventionalists. CT fluoroscopy is superior to conventional fluoros ...
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Journal articleSurg Innov · September 2010
Intracranial endoscopy has emerged as an innovative surgical tool for various intracranial procedures, but its use remains limited to neurosurgeons trained in this minimally invasive technique. Complex, skull base arachnoid cysts represent one entity that ...
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Journal articleAJR Am J Roentgenol · June 2009
OBJECTIVE: The purpose of this study was to derive from the kerma area product the dose conversion coefficient for estimating the effective dose for lumbar epidural steroid injection procedures. MATERIALS AND METHODS: A mobile fluoroscopy system was used f ...
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Journal articleJ Am Coll Radiol · June 2009
Acute low back pain with or without radiculopathy is one of the most common health problems in the United States, with high annual costs of evaluation and treatment, not including lost productivity. Multiple reports show that uncomplicated acute low back p ...
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Journal articleChest · March 2009
BACKGROUND: Clinical signs often fail to identify stroke patients who are at increased risk of aspiration. We hypothesized that objective measure of voluntary cough would improve the accuracy of the clinical evaluation of swallow to predict those patients ...
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Journal articleJ Orthop Sports Phys Ther · March 2009
STUDY DESIGN: Case control study. BACKGROUND: Myelopathy is a clinical diagnosis based largely on initial examination findings during a clinical screen, followed by imaging verification of cord injury or compression. At present, few studies have examined t ...
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Journal articleOphthalmic Plast Reconstr Surg · 2009
PURPOSE: The bony skeleton serves as the scaffolding for the soft tissues of the face; however, age-related changes of bony morphology are not well defined. This study sought to compare the anatomic relationships of the facial skeleton and soft tissue stru ...
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Journal articlePain Med · April 2008
OBJECTIVE: This report describes a case of computed tomography (CT)-guided bilateral posteromedian transdiscal approach to the superior hypogastric plexus with neurolysis for treatment of intractable abdominal pain secondary to metastatic prostate cancer. ...
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Journal articleJ Neurosurg · February 2008
Cholesterol granulomas (CGs) are benign lesions resulting from an inflammatory reaction to cholesterol and hemosiderin. These masses most often arise within the temporal bone or nasal sinuses; intracerebral CGs are extremely rare. In this report the author ...
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Journal articleJ Neuroimaging · October 2007
There is growing clinical evidence supporting a connection between copper deficiency and subacute combined degeneration. While nearly half of patients with copper deficiency myelopathy exhibit MRI abnormalities, signal changes are often ill-defined in dist ...
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Journal articleJ Neurosurg · November 2006
OBJECT: Maximizing intradural exposure via the extreme lateral infrajugular transcondylar-transtubercular exposure (ELITE) approach depends on understanding the fundamental anatomy of the jugular tubercle (JT). Drilling the JT can maximize the extent of ex ...
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Journal articleNeurosurgery · July 2006
OBJECTIVE: The location of the superior semicircular canal (SSC) is often determined intraoperatively based on its topographic association with the arcuate eminence (AE). This determination is not always possible because of the potential variability in the ...
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Journal articleBr J Anaesth · April 2005
We report two cases of Caesarean section in patients with Marfan's syndrome where continuous subarachnoid anaesthesia failed to provide an adequate surgical block. This was possibly because of dural ectasia, which was confirmed by a computed tomography sca ...
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Journal articleProceedings of the IEEE Symposium on Computer Based Medical Systems · September 29, 2004
Case-based teaching allows for the study of medicine through records of patient encounters. These cases, used for teaching purposes, are variably collected by clinicians as hard copies of patient files and radiology films. Currently, a single repository of ...
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Journal articleAcad Radiol · July 2004
RATIONALE AND OBJECTIVES: We surveyed program directors to determine current radiology program practices in evaluating their residents, faculty, and program. MATERIALS AND METHODS: In January 2003, a 52-item Web-based survey was made available to program d ...
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Journal articleOphthalmology · December 2001
OBJECTIVE: The purpose of this study is to determine whether 3-mm computed tomography (CT) cuts are equivalent to 1-mm CT cuts for detecting small intraocular foreign bodies (IOFBs). DESIGN: Experimental instrument validation study. PARTICIPANTS: Seventy-t ...
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Journal articleNeurosurgery · August 2001
OBJECTIVE: The bony and vascular anatomic features in the region of the petrous apex can vary significantly. These variations affect the operative view obtained via extended subtemporal or anterior transpetrosal approaches to cranial base lesions for indiv ...
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Journal articleSemin Ultrasound CT MR · April 2001
Complete thoracolumbar trauma evaluation incorporates radiographs, computed tomography, and magnetic resonance imaging. Primarily to localize the level of injury, diagnosis of thoracolumbar spine trauma begins with radiographs. Computed tomography with sag ...
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Journal articleNeurology · February 27, 2001
BACKGROUND: Dysphagia and subsequent aspiration are serious complications of acute stroke that may be related to an impaired cough reflex. It was hypothesized that aspirating stroke patients would have impaired objective measures of voluntary cough as comp ...
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Journal articleNeurosurgery · February 2001
OBJECTIVE: The optimal surgical exposure for basilar tip aneurysms is dictated by the relationship of the basilar bifurcation to the cranial base. This study was designed to evaluate three-dimensional computed tomographic angiography as a means of obtainin ...
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Journal articleNeuroimaging Clinics of North America · January 1, 2001
Thoracic spine fractures are more difficult to diagnose and assess on conventional films. Lumbar fractures are easier to detect on radiographs. CT characterizes more fully the extent of all of the fractures, particularly those involving the posterior eleme ...
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Journal articleAJR Am J Roentgenol · May 2000
OBJECTIVE: Physician competence in the performance of sonographic studies was assessed after their involvement in predetermined increments of cases to determine whether the case volumes currently required by the American Institute of Ultrasound in Medicine ...
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Journal articleNeuroradiology · March 2000
Cerebral sparganosis, a parasitic disease, rarely produces a chronic active inflammatory response in the brain. Clinically and radiographically the process may mimic a neoplasm. We report a 30-year-old man who underwent surgical exploration for a mass in t ...
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Journal articleNeurology · December 10, 1999
We investigated whether early hematoma or edema volumes could explain the adverse association between APOE epsilon4 and survival in intracerebral hemorrhage. Among 102 patients, epsilon4 carriers had a higher mortality rate than non-epsilon4 carriers (38 v ...
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Journal articleSkull Base Surgery · December 1, 1999
Introduction: We evaluated 3-D CTA as a means of obtaining detailed anatomic information regarding differences in bony landmarks and spatial relationships in the region of the petrous carotid. Methods: Thirty patients underwent CT angiography with 1-mm sli ...
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Journal articleClin Neuropathol · 1999
Meningiomas are primary meningeal based tumors of the central nervous system that rarely are located strictly within the fourth ventricle. We report a 72-year-old man operated upon for such a tumor. The pre-operative magnetic resonance images revealed a we ...
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Journal articleJ Inherit Metab Dis · December 1998
Non-ketotic hyperglycinaemia (NKH) is a rare, severe brain disease caused by deficient glycine cleavage enzyme complex activity resulting in elevated glycine concentrations. Recent experience suggests that factors in addition to glycine kinetics are involv ...
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Journal articleClin Neurol Neurosurg · June 1998
Hyperphosphatemic tumoral calcinosis (HTC) is a rare inherited metabolic disorder manifested by pararticular calcification and hyperphosphatemia, caused by an elevated renal phosphate reabsorption threshold and elevated serum 1,25-dihydroxyvitamin D levels ...
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Journal articleMagn Reson Imaging Clin N Am · February 1998
Diffusion is a major advance in the continuing evolution of MR imaging. It provides contrasts and characterization between tissues at a cellular level that may imply differences in function as well as framework. With the development of echo-planar imaging ...
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Journal articleJ Neuropathol Exp Neurol · January 1998
Intracranial vasculitis, or primary angiitis of the central nervous system (PACNS), is an uncommon, often fatal disorder that frequently responds to aggressive immunosuppressive therapy. Magnetic resonance imaging (MRI), cerebral angiography, and brain bio ...
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Journal articleClin Neuropathol · 1998
Twenty-nine months after surgery, irradiation, and systemic chemotherapy for a pineal mixed germ cell tumor, an 11-year-old Caucasian male developed a 3 cm dural based nodule in the occipital lobe that proved to be a solitary fibrous tumor by immunohistoch ...
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Journal articleNeuroradiology · January 1998
We compared high-dose (0.3 mmol/kg) and standard-dose (0.1 mmol/kg) gadolinium-enhanced MRI for diagnosis of meningeal metastases in 12 patients with suspected meningeal metastases. They were imaged with both standard-dose and high-dose gadolinium. All pat ...
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Journal articleJ Rheumatol · March 1996
We describe a patient with cerebral vasculitis treated with prednisone and cyclophosphamide and followed by serial transcranial Doppler sonography and arteriography. Proximal cerebral angiographic abnormalities correlated with transcranial Doppler abnormal ...
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Journal articleNeurology · September 1995
We reviewed the clinical course of nine patients with neuro-Behçet's disease to assess difficulties in making this diagnosis. Factors delaying proper diagnosis included lack of accurate history and physical examination, lack of recognition of an underlying ...
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Journal articleStroke · March 1995
BACKGROUND: Extracranial carotid artery dissection is a well-recognized cause of ischemic stroke. Recurrent carotid artery dissections are infrequent. Recurrent ipsilateral dissection has only rarely been documented and has not been pathologically verified ...
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Journal articleUndersea Hyperb Med · March 1995
The role of brain computerized tomography (CT) imaging in predicting clinical outcome was investigated in patients receiving hyperbaric oxygen therapy for serious carbon monoxide (CO) poisoning. From a series of 48 consecutive patients suffering loss of co ...
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Journal articleJ Vasc Interv Radiol · 1995
PURPOSE: To determine the safety and value of vertebral column embolization before surgical resection of vascular neoplastic disease. PATIENTS AND METHODS: Thirty preoperative embolization procedures were performed in 20 patients with vascular neoplasms of ...
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Journal articleNeurosurgery · January 1995
Three cases of adult patients with subacute courses of progressive caudal spinal cord disease are presented. Computed tomography, magnetic resonance imaging, and myelographic studies were interpreted preoperatively as representing a spinal cord neoplasm in ...
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Journal articleNeurology · January 1995
We compared premortem neuroimaging findings with neuropathologic evidence of temporal lobe atrophy in 20 patients with Alzheimer's disease (AD) confirmed by autopsy. There were significant correlations between temporal horn enlargement observed by neuroima ...
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Journal articleSeminars in Spine Surgery · January 1, 1995
In conclusion, MRI has been shown to be the most sensitive test for the evaluation of bone marrow. It is lacking in its ability to screen the entire skeleton, as can be done with BS. MRI, however, is more sensitive for identifying osteoclastic processes of ...
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Journal articleUndersea Hyperb Med · June 1994
The objective assessment of the extent of cerebral insult and the effects of therapy in decompression injury patients has proven to be difficult by most imaging modalities. In this pilot study we evaluated the ability of 18-F-2-fluoro-2-deoxyglucose (FDG) ...
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Journal articleAnn Neurol · March 1994
We analyzed the interictal [18F]fluoro-2-deoxy-D-glucose positron emission tomography (PET) findings of 17 epileptic patients with neuronal migration disorders (NMDs). Fifteen patients had abnormal PET findings, i.e., focal hypometabolism in 9 patients and ...
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Journal articleAJR Am J Roentgenol · May 1993
OBJECTIVE: Mesenrhombencephalitis is a serious form of brainstem inflammation predominantly involving the deep and vital portions of the brain, that is, the mesencephalon (midbrain) and rhombencephalon (pons, medulla). Mesenrhombencephalitis is difficult t ...
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Journal articleJ Nucl Med · April 1993
Structural imaging studies such as CT or MRI are not able to accurately differentiate infectious from malignant cerebral lesions in patients with AIDS. We studied 11 individuals with AIDS and central nervous system (CNS) lesions with 18F-fluoro-2-deoxygluc ...
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Journal articleMed Pediatr Oncol · 1993
Gadolinium-DTPA enhanced MRI is the modality of choice when imaging central nervous system infratentorial tumors in the pediatric population. The detection of a new enhancing lesion following initiation of therapy is typically considered pathognomonic for ...
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Journal articleJ Magn Reson Imaging · 1993
Disruption of spinal ligaments can lead to instability that jeopardizes the spinal cord and nerve roots. Magnetic resonance (MR) imaging can directly image spinal ligaments; however, the sensitivity with which this modality demonstrates ligament injury has ...
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Journal articleNeurology · September 1992
The Consortium to Establish a Registry for Alzheimer's Disease (CERAD) has developed procedures for standardized imaging and reporting of magnetic resonance (MR) findings in Alzheimer's disease (AD) for use by neuroradiologists in multiple medical centers ...
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Journal articleStroke · May 1992
BACKGROUND AND PURPOSE: Magnetic resonance imaging (MRI) of the brain is replacing computed tomography in the diagnostic evaluation of acute ischemic strokes. Past studies have suggested that MRI may not visualize all acute strokes, but few clinical detail ...
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Journal articlePediatr Radiol · 1992
Twenty-two pediatric patients with known CNS neoplasms underwent magnetic resonance (MR) imaging before and after intravenous injection of 0.1 mmol/kg gadoteridol injection as part of a Phase IIIB open label multicenter clinical trial. Intravenous administ ...
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Journal articleDysphagia · 1992
Aspiration is a common problem following stroke, resulting in feeding difficulties and aspiration pneumonia. Despite past studies using clinical assessments and computed tomographic (CT) scans of the head, the correlation of stroke location with aspiration ...
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Journal articleSpine (Phila Pa 1976) · August 1991
A dynamic servocontrolled torsion machine has been used to characterize cervical injury due to pure rotation of the head. Resultant force moment, torque, and applied rotation have been measured. Torque applied to the base of the skull resulted in injury to ...
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Journal articleSAE Technical Papers · January 1, 1989
The passive torsional responses of the human cervical spine were investigated using unembalmed cervical spines in a dynamic test environment. Kinematic constraints were designed to simulate in vivo conditions. A physiologic axis of twist was determined bas ...
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Journal articleJ Comput Assist Tomogr · 1988
Two extradural arachnoid cysts of the thoracic spine were studied with magnetic resonance imaging, myelography, and CT. Magnetic resonance imaging correctly characterized the extradural location of the cysts as well as the cyst contents as CSF, thus establ ...
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Journal articleSAE Technical Papers · January 1, 1988
The lateral, anterior and posterior passive bending responses of the human cervical spine were investigated using unembalmed cervical spinal elements obtained from cadavers. Bending stiffness was measured in six modes ranging from tension-extension through ...
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