Journal ArticleAbdominal radiology (New York) · April 2025
Cross-sectional interventional radiology (CSIR) for the spleen has evolved over the past two decades. Contemporary data show that CT- and US-guided splenic procedures are safer than once assumed, allowing for biopsy and drainage when clinically appropriate ...
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Journal ArticleJ Ultrasound · June 2024
RATIONAL AND OBJECTIVES: To increase utilization of contrast-enhanced ultrasound (CEUS) during ultrasound-guided targeted liver biopsies. MATERIAL AND METHODS: Two educational training interventions performed to increase use of CEUS. First, 14 radiologists ...
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Journal ArticleCurr Probl Diagn Radiol · 2024
PURPOSE: To validate the performance of a recently created risk stratification system (RSS) for thyroid nodules on ultrasound, the Artificial Intelligence Thyroid Imaging Reporting and Data System (AI TI-RADS). MATERIALS AND METHODS: 378 thyroid nodules fr ...
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Journal ArticleClin Imaging · July 2023
OBJECTIVES: The purpose is to apply a previously validated deep learning algorithm to a new thyroid nodule ultrasound image dataset and compare its performances with radiologists. METHODS: Prior study presented an algorithm which is able to detect thyroid ...
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Journal ArticleAbdom Radiol (NY) · August 2022
PURPOSE: To identify commonly used needle types in cross-sectional interventional radiology (CSIR) and to review features and safety profiles of those needles. METHODS: Members of the Society of Abdominal Radiology (SAR) emerging technologies commission (E ...
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Journal ArticleAbdom Radiol (NY) · August 2022
PURPOSE: To compare clinical efficacy, subjective radiologist preference, and complication rates for two different core biopsy needles, the Achieve® and Marquee®. METHODS: Retrospective review included consecutive patients who underwent 18 gauge non-target ...
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Journal ArticleJ Am Coll Radiol · February 2021
PURPOSE: To compare the effectiveness of different reporting templates using the ACR Thyroid Imaging Reporting and Data System (TI-RADS) for thyroid ultrasound. METHODS: In this retrospective study, four radiologists implemented ACR TI-RADS while dictating ...
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Journal ArticleClin Imaging · May 2020
PURPOSE: To compare the efficacy of two 18-gauge core needle biopsy systems, the Achieve® (Merit Medical) and the Marquee® (BD Bard), using an ex-vivo animal liver model and retrospective review of clinical experience. METHODS: Sixty ex-vivo liver biopsy s ...
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Journal ArticleAJR Am J Roentgenol · March 2019
OBJECTIVE: The purpose of this study is to determine whether second-order texture analysis can be used to distinguish lipid-poor adenomas from malignant adrenal nodules on unenhanced CT, contrast-enhanced CT (CECT), and chemical-shift MRI. MATERIALS AND ME ...
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Journal ArticleAJR Am J Roentgenol · June 2018
OBJECTIVE: The purpose of this study is to compare visualization rates of the major features covered by Liver Imaging Reporting and Data System (LI-RADS) version 2014 in patients at risk for hepatocellular carcinoma using either gadobenate dimeglumine or g ...
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Journal ArticleJ Comput Assist Tomogr · 2018
OBJECTIVE: This study aimed to determine potential radiation dose reduction of contrast-enhanced computed tomography (CECT) for imaging necrotizing pancreatitis (NP) using a noise addition tool. METHODS: Eighty-four patients were identified with at least 1 ...
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Journal ArticleAbdom Imaging · October 2015
PURPOSE: To prospectively evaluate whether clinical experience with an adaptive statistical iterative reconstruction algorithm (ASiR) has an effect on radiologists' diagnostic performance and confidence for the diagnosis of hypervascular liver tumors, as w ...
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Journal ArticleAbdom Imaging · October 2015
OBJECTIVE: To determine the diagnostic performance of imaging criteria for distinguishing Ig-G4-associated autoimmune cholangiopathy (IAC) from primary sclerosing cholangitis (PSC) and bile duct malignancy. METHODS: A medical records search between January ...
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Journal ArticleAJR Am J Roentgenol · August 2015
OBJECTIVE: Many radiologists are unfamiliar with the new antithrombogenic medications and how to modify patient management before nonvascular percutaneous procedures performed in a radiology department. In this article, we review the indications for use, m ...
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Journal ArticleRadiology · February 2015
PURPOSE: To determine whether contrast material-enhanced dual-energy multidetector computed tomography (CT) with material decomposition analysis allows differentiation of adrenal adenomas from nonadenomatous lesions and to compare findings with those of no ...
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Chapter · May 1, 2014
The adrenal glands can develop a myriad of abnormalities, which can be fundamentally differentiated into benign or malignant lesions having either hyperfunction or non-hyperfunction (i.e., non-function) [1, 2]. Functioning lesions typically secrete hormona ...
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Journal ArticleClin Imaging · 2014
We report the case of a previously healthy 21-year-old woman who presented 6 days post-partum in acute fulminant hepatic failure. A liver ultrasound demonstrated normal echogenicity without discrete nodules while an enhanced computed tomography (CT) demons ...
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Journal ArticleEur Radiol · December 2013
OBJECTIVES: To investigate the impact of an adaptive statistical iterative reconstruction (ASiR) algorithm on diagnostic accuracy and confidence for the diagnosis of hypervascular liver tumours, as well as the reader's perception of image quality, using a ...
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Journal ArticleAcad Radiol · August 2013
PURPOSE: To determine interreader agreement and diagnostic accuracy across varying levels of reader experience using qualitative and quantitative methods of evaluating adrenal nodules using ((18)F)-fluorodeoxyglucose-positron emission tomography/computed t ...
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Journal ArticleAJR Am J Roentgenol · July 2013
OBJECTIVE: The objective of this article is to review the MRI and ultrasound appearances of incarcerated uterus. CONCLUSION: Incarcerated uterus is a rare but serious complication of pregnancy in which the gravid uterus becomes trapped in the posterior pel ...
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Journal ArticleJ Magn Reson Imaging · February 2013
PURPOSE: To evaluate the value of hepatobiliary phase imaging for detection and characterization of hepatocellular carcinoma (HCC) in liver MRI with Gd-EOB-DTPA, in a North American population. MATERIALS AND METHODS: One hundred MRI examinations performed ...
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Journal ArticleJ Comput Assist Tomogr · 2013
OBJECTIVE: The objectives of this study were to explore utilization of multi-detector row computed tomography (MDCT) in screening for hepatocellular carcinoma (HCC) and to modify a liver CT protocol with a goal of dose reduction. METHODS: An electronic mai ...
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Journal ArticleAJR Am J Roentgenol · November 2012
OBJECTIVE: The purpose of this article is to give a brief overview of the technical background of dual-energy CT (DECT) imaging and to review various DECT applications in the abdomen that are currently available for clinical practice. In a review of the re ...
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Journal ArticleAJR Am J Roentgenol · April 2012
OBJECTIVE: The purpose of our study was to investigate whether virtual unenhanced adrenal nodule attenuation values can replace true noncontrast attenuation values. MATERIALS AND METHODS: Twenty-three incidentally discovered adrenal nodules (19 adenomas an ...
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Journal ArticleAJR Am J Roentgenol · February 2012
OBJECTIVE: The objective of our study was to retrospectively determine whether minimal fat renal angiomyolipoma can be differentiated from clear cell or papillary renal cell carcinoma (RCC) in small renal masses using attenuation measurement histogram anal ...
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Journal ArticleEur J Radiol · November 2011
OBJECTIVE: To predict the MR appearance of retained surgical textiles in the acute setting by using an in vitro phantom and body MR imaging protocols. METHODS: Three surgical sponges were embedded in clear gelatin. One of these sponges was soaked in fresh ...
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Journal ArticleAJR Am J Roentgenol · March 2011
OBJECTIVE: The purpose of this article is to determine the clinical features, imaging findings, and possible causes of pneumatosis intestinalis (PI) or pneumoperitoneum that developed in bilateral lung transplant recipients. MATERIALS AND METHODS: From Dec ...
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Journal ArticleRadiology · August 2010
PURPOSE: To intraindividually compare a low-tube-voltage (80 kVp), high-tube-current (675 mA) computed tomographic (CT) technique with a high-tube-voltage (140 kVp) CT protocol for the detection of pancreatic tumors, image quality, and radiation dose durin ...
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Journal ArticleAJR Am J Roentgenol · June 2010
OBJECTIVE: The purpose of this study was to determine whether use of dual-energy technique can improve the diagnostic performance of CT in the differential diagnosis of adrenal adenomas and metastatic lesions. SUBJECTS AND METHODS: Thirty-one adrenal nodul ...
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Journal ArticleAJR Am J Roentgenol · February 2010
OBJECTIVE: The purposes of this study were to retrospectively investigate the effectiveness and safety of CT-guided percutaneous drainage in the treatment of patients with acute appendicitis complicated by perforation and to identify CT findings and proced ...
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Journal ArticleRadiographics · 2010
Dual-energy CT provides information about how substances behave at different energies, the ability to generate virtual unenhanced datasets, and improved detection of iodine-containing substances on low-energy images. Knowing how a substance behaves at two ...
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Journal ArticleAcad Radiol · November 2009
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RATIONALE AND OBJECTIVES: The aim of this study was to measure the radiation dose of dual-energy and single-energy multidetector computed tomographic (CT) imaging using adult liver, renal, and aortic imaging protocols. MATERIALS AND METHODS: Dual-energy CT ...
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Journal ArticleRadiology · June 2009
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PURPOSE: To intraindividually compare a low tube voltage (80 kVp), high tube current computed tomographic (CT) technique with a standard CT protocol (140 kVp) in terms of image quality, radiation dose, and detection of malignant hypervascular liver tumors ...
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Journal ArticleRadiology · February 2009
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PURPOSE: To develop an algorithm to maximize the diagnostic yield of positron emission tomography (PET)/computed tomography (CT) by using defined attenuation and standardized uptake value (SUV) criteria. MATERIALS AND METHODS: An IRB-approved, HIPAA-compli ...
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Journal ArticleAJR Am J Roentgenol · July 2008
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OBJECTIVE: The purpose of our study was to evaluate the efficacy of CT histogram analysis for further characterization of lipid-poor adenomas on unenhanced CT. MATERIALS AND METHODS: One hundred thirty-two adrenal nodules were identified in 104 patients wi ...
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Journal ArticleAJR Am J Roentgenol · January 2008
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OBJECTIVE: Our purpose was to prospectively compare the reader compatibility and acceptability of a range of reduced-dose 16-MDCT images with standard-dose 16-MDCT images for the detection of nephroureterolithiasis using a dose reduction simulation techniq ...
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Journal ArticleJ Comput Assist Tomogr · 2008
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OBJECTIVE: New medications are available for prophylaxis of deep venous thrombosis, the treatment of venous thromboembolism, and also to reduce the risk of acute coronary syndrome and stroke. The purpose of this review is to provide the radiologist a pract ...
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Journal ArticleAJR Am J Roentgenol · June 2007
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OBJECTIVE: The frequency of detection of pneumatosis intestinalis (PI) appears to be increasing. This increase may be the result of increased CT use. New medications and surgical procedures have been reported to be associated with an increase in the incide ...
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Journal ArticleInvest Radiol · June 2007
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OBJECTIVES: To determine quantitative and qualitative image quality in patients undergoing magnetic resonance (MR) cholangiography at 3.0 Tesla (T) compared with 1.5 T. MATERIALS AND METHODS: Fifty patients (30 women; mean age, 51 years) underwent MR chola ...
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Journal ArticleRadiology · May 2007
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PURPOSE: To prospectively evaluate the use of lean body weight (LBW) as the main determinant of the volume and rate of contrast material administration during multi-detector row computed tomography of the liver. MATERIALS AND METHODS: This HIPAA-compliant ...
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Journal ArticleJ Comput Assist Tomogr · 2007
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PURPOSE: To evaluate whether hepatic magnetic resonance angiography (MRA) performed at 3 T and acquired with a parallel imaging acceleration factor of 2 provides satisfactory image quality and adequate contrast-to-noise, compared with an acquisition withou ...
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Journal ArticleAbdom Imaging · 2005
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Pneumatosis intestinalis may be idiopathic or associated with numerous conditions. Uncommonly, it has been associated with organ transplantation. We report one case of pneumatosis intestinalis after lung transplantation in an adult patient. To our knowledg ...
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Journal ArticleRadiology · September 2004
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PURPOSE: To prospectively evaluate a technique for optimizing aortoiliac enhancement at multi-detector row helical computed tomography (CT) with both the scanning delay and contrast medium dose determined by using an interactive method. MATERIALS AND METHO ...
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Journal ArticleAbdom Imaging · 2004
Pancreatic cancer may present on computed tomography (CT) as an isolated cuff of tumor surrounding the superior mesenteric artery (SMA) or celiac trunk, without an identifiable pancreatic mass. We reviewed our experience with imaging-guided biopsy of the s ...
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Journal ArticleAJR Am J Roentgenol · June 2003
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OBJECTIVE: The objective of our study was to determine the usefulness of sonographic guidance for biopsy of mesenteric masses. MATERIALS AND METHODS: Twenty-five sonographically guided percutaneous biopsies of mesenteric masses were performed in 23 patient ...
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Journal ArticleAJR Am J Roentgenol · April 2002
OBJECTIVE. This report describes the CT and endoscopic sonographic appearance of simple pancreatic cysts in three adults. CONCLUSION. Simple pancreatic cysts are typically an incidental finding in adults who have no history of pancreatic disease. The imagi ...
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Journal ArticleAbdom Imaging · 1999
We evaluated the value of placement of a folded gauze square into the urogenital introitus to improve vaginal opacification in 90 patients who underwent defecography. Of the 50 patients who retained the gauze in the introitus, 96% demonstrated excellent or ...
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Journal ArticleAbdom Imaging · 1999
BACKGROUND: To determine whether direction of vaginal displacement during defecography aids in diagnosing pelvic floor pathology. METHODS: Ninety patients underwent defecography over a 2-year period. Each study was retrospectively reviewed by three radiolo ...
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