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Abdominal Radiology

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https://www.readbyqxmd.com/read/27909774/evaluation-of-upper-abdominal-organs-with-dwi-in-patients-with-familial-mediterranean-fever
#1
Eda Albayrak, Safak Sahin
PURPOSE: To investigate the diagnostic efficiency of diffusion-weighted magnetic resonance imaging (DWI) for the evaluation of functional changes that can occur in upper abdominal organs in patients with familial Mediterranean fever (FMF). METHODS: The study included 50 controls, 45 patients with FMF, and 14 patients with FMF who had accompanying proteinuria. Measurement of apparent diffusion coefficient (ADC) was performed using DWI sections obtained from liver, spleen, kidney, and pancreas parenchyma with 1...
December 2, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27909773/magnetic-resonance-imaging-of-fetal-pelvic-cysts
#2
REVIEW
Styliani Archontaki, Yvan Vial, Sylviane Hanquinet, Reto Meuli, Leonor Alamo
The detection of fetal anomalies has improved in the last years as a result of the generalization of ultrasound pregnancy screening exams. The presence of a cystic imaging in the fetal pelvis is a relatively common finding, which can correspond to a real congenital cystic lesion or result from the anomalous liquid accumulation in a whole pelvic organ, mainly the urinary bladder, the uterus, or the vagina. In selected cases with poor prognosis and/or inconclusive echographic findings, magnetic resonance may bring additional information in terms of the characterization, anatomical location, and real extension of the pathology...
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27909772/erratum-to-short-term-efficacy-of-transarterial-chemoembolization-with-epirubicin-loaded-superabsorbent-polymer-microspheres-for-hepatocellular-carcinoma-comparison-with-conventional-transarterial-chemoembolization
#3
Manabu Morimoto, Satoshi Kobayashi, Satoshi Moriya, Makoto Ueno, Shun Tezuka, Kuniyasu Irie, Yoshihiro Goda, Shinichi Ohkawa
No abstract text is available yet for this article.
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27904923/can-diffusion-weighted-magnetic-resonance-imaging-of-clear-cell-renal-carcinoma-predict-low-from-high-nuclear-grade-tumors
#4
Carolina Parada Villavicencio, Robert J Mc Carthy, Frank H Miller
OBJECTIVE: To assess the diagnostic performance of the apparent diffusion coefficient (ADC) in predicting the Fuhrman nuclear grading of clear cell renal cell carcinomas (ccRCC). MATERIALS AND METHODS: A total of 129 patients who underwent partial and radical nephrectomies with pathology-proven ccRCC were retrospectively evaluated. Histopathological characteristics and nuclear grades were analyzed. In addition, conventional magnetic resonance imaging (MRI) features were assessed in consensus by two radiologists to discriminate nuclear grading...
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27900458/utility-of-whole-lesion-adc-histogram-metrics-for-assessing-the-malignant-potential-of-pancreatic-intraductal-papillary-mucinous-neoplasms-ipmns
#5
David H Hoffman, Justin M Ream, Christina H Hajdu, Andrew B Rosenkrantz
PURPOSE: To evaluate whole-lesion ADC histogram metrics for assessing the malignant potential of pancreatic intraductal papillary mucinous neoplasms (IPMNs), including in comparison with conventional MRI features. METHODS: Eighteen branch-duct IPMNs underwent MRI with DWI prior to resection (n = 16) or FNA (n = 2). A blinded radiologist placed 3D volumes-of-interest on the entire IPMN on the ADC map, from which whole-lesion histogram metrics were generated. The reader also assessed IPMN size, mural nodularity, and adjacent main-duct dilation...
November 30, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27896386/dual-energy-ct-angiography-pros-and-cons-of-dual-energy-metal-artifact-reduction-algorithm-in-patients-after-endovascular-aortic-repair
#6
Johannes Boos, Jieming Fang, Benedikt H Heidinger, Vassilios Raptopoulos, Olga R Brook
PURPOSE: To evaluate the value of metal artifact reduction (MAR) post-processing and iodine MD images in fast kV-switching dual-energy computed tomography (DECT) in patients after endovascular aortic repair (EVAR). MATERIALS AND METHODS: Twenty-four consecutive EVAR patients (age 76 ± 9 years, 7/24 (29%) with coils, 9/24 (37.5%) with 10 endoleaks) who underwent DECT angiography were included in this HIPAA-compliant, IRB-approved retrospective study. Monochromatic reconstructions included 55, 60, 65, 70, and 75 keV with and without MAR and iodine MD images...
November 28, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27896385/pictorial-review-the-pearls-and-pitfalls-of-the-radiological-manifestations-of-gallstone-ileus
#7
REVIEW
Phei Shan Chuah, John Curtis, Nikhil Misra, Dina Hikmat, Sumita Chawla
We present a pictorial review of a range of typical and atypical cases of gallstone ileus (GI), across a wide range of imaging modalities. GI is a complication of gallstone disease causing mechanical intestinal obstruction due to impaction of gallstone in the gastrointestinal tract. The spectrum of presentation can vary enormously, and we highlight the importance of accurate imaging diagnosis of GI especially early use of computed tomography. This will lead to timely and appropriate surgical intervention with the potential avoidance of unnecessary outcomes...
November 28, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27891551/colorectal-cancer-staging-comparison-of-whole-body-pet-ct-and-pet-mr
#8
Onofrio A Catalano, Artur M Coutinho, Dushyant V Sahani, Mark G Vangel, Michael S Gee, Peter F Hahn, Thomas Witzel, Andrea Soricelli, Marco Salvatore, Ciprian Catana, Umar Mahmood, Bruce R Rosen, Debra Gervais
PURPOSE: Correct staging is imperative for colorectal cancer (CRC) since it influences both prognosis and management. Several imaging methods are used for this purpose, with variable performance. Positron emission tomography-magnetic resonance (PET/MR) is an innovative imaging technique recently employed for clinical application. The present study was undertaken to compare the staging accuracy of whole-body positron emission tomography-computed tomography (PET/CT) with whole-body PET/MR in patients with both newly diagnosed and treated colorectal cancer...
November 28, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27891550/improved-diagnosis-of-common-bile-duct-stone-with-single-shot-balanced-turbo-field-echo-sequence-in-mrcp
#9
Yoshifumi Noda, Satoshi Goshima, Toshihisa Kojima, Shimpei Kawaguchi, Hiroshi Kawada, Nobuyuki Kawai, Hiromi Koyasu, Masayuki Matsuo, Kyongtae T Bae
PURPOSE: To evaluate the value of adding single-shot balanced turbo field-echo (b-TFE) sequence to conventional magnetic resonance cholangiopancreatography (MRCP) for the detection of common bile duct (CBD) stone. METHODS: One hundred thirty-seven consecutive patients with suspected CBD stone underwent MRCP including single-shot b-TFE sequence. Twenty-five patients were confirmed with CBD stone by endoscopic retrograde cholangiopancreatography or ultrasonography...
November 28, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27891549/a-pilot-study-of-the-diagnostic-and-prognostic-values-of-flt-pet-ct-for-pancreatic-cancer-comparison-with-fdg-pet-ct
#10
Masatoyo Nakajo, Yoriko Kajiya, Atsushi Tani, Megumi Jinguji, Masayuki Nakajo, Tohru Nihara, Yoshihiko Fukukura, Takashi Yoshiura
PURPOSE: The purpose of the study was to examine the diagnostic and prognostic values of (18)F-fluorothymidine (FLT)-PET/CT for pancreatic cancer by comparing with (18)F-fluorodeoxyglucose (FDG)-PET/CT. METHODS: Fifteen patients with newly diagnosed pancreatic cancer underwent both FLT and FDG-PET/CT scans before treatment. The sensitivity, specificity, and accuracy in detecting nodal and distant metastases were compared between both scans using McNemar exact or χ (2) test...
November 28, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27891548/falciform-ligament-sign
#11
REVIEW
Venkatraman Indiran, Prabakaran Maduraimuthu
No abstract text is available yet for this article.
November 28, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27888303/dual-energy-ct-workflow-multi-institutional-consensus-on-standardization-of-abdominopelvic-mdct-protocols
#12
Bhavik N Patel, Lauren Alexander, Brian Allen, Lincoln Berland, Amir Borhani, Achille Mileto, Courtney Moreno, Desiree Morgan, Dushyant Sahani, William Shuman, Eric Tamm, Mitchell Tublin, Benjamin Yeh, Daniele Marin
PURPOSE: To standardize workflow for dual-energy computed tomography (DECT) involving common abdominopelvic exam protocols. MATERIALS AND METHODS: 9 institutions (4 rsDECT, 1 dsDECT, 4 both) with 32 participants [average # years (range) in practice and DECT experience, 12.3 (1-35) and 4.6 (1-14), respectively] filled out a single survey (n = 9). A five-point agreement scale (0, 1, 2, 3, 4-contra-, not, mildly, moderately, strongly indicated, respectively) and utilization scale (0-not performing and shouldn't; 1-performing but not clinically useful; 2-performing but not sure if clinically useful; 3-not performing it but would like to; 4-performing and clinically useful) were used...
November 25, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27885392/imaging-of-acute-anorectal-conditions-with-ct-and-mri
#13
REVIEW
Preethi Guniganti, Sara Lewis, Ally Rosen, Sarah Connolly, Constantine Raptis, Vincent Mellnick
Anorectal disorders are a common cause of presentation to the emergency department (ED). While the most frequently encountered anorectal conditions, such as hemorrhoids and anal fissures, are relatively benign and do not require imaging for diagnosis or management, there are multiple potentially life threatening anorectal conditions for which imaging is an important component of evaluation, diagnosis, and management. Although computed tomography (CT) is the most commonly used imaging modality for evaluation of anorectal pathology in the ED, magnetic resonance imaging (MRI) has an increasingly important role in the detection, characterization and management of specific anorectal conditions...
November 24, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27885391/screening-ct-colonography-reimbursement-triumphs-and-navigating-a-path-forward
#14
LETTER
Judy Yee, Anita McGlothlin, Kathryn J Keysor
No abstract text is available yet for this article.
November 24, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27885390/ct-angiography-in-the-setting-of-suspected-acute-mesenteric-ischemia-prevalence-of-ischemic-and-alternative-diagnoses
#15
Frank Oliver Henes, Perry J Pickhardt, Andrzej Herzyk, Scott J Lee, Utaroh Motosugi, Thorsten Derlin, Meghan G Lubner, Gerhard Adam, Gerhard Schön, Peter Bannas
PURPOSE: The purpose of the study was to determine the prevalence of ischemic and alternative diagnoses and the diagnostic accuracy of CT angiography (CTA) in the setting of suspected acute mesenteric ischemia (AMI). MATERIAL AND METHODS: We included 959 patients undergoing CTA for the evaluation of suspected AMI. The final clinical diagnosis was used to determine the prevalence of ischemic and alternative diagnoses and to calculate the diagnostic accuracy of CTA...
November 24, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27885389/mri-features-of-perianal-fistulas-is-there-a-difference-between-crohn-s-and-non-crohn-s-patients
#16
Irai S Oliveira, Aoife Kilcoyne, Melissa C Price, Mukesh Harisinghani
PURPOSE: Though perianal fistulas are commonly seen in patients with Crohn's disease, they can also be seen in patients without inflammatory bowel disease. The purpose of this study was to evaluate MR imaging differences of perianal fistulas in patients with and without Crohn's disease. METHODS: Our retrospective search from January 2012 to December 2015 of the Radiology database for perianal fistula yielded 207 patients. Only patients with dedicated MR fistula protocol studies were included, whereas patients with previous anal surgery or anastomosis, anorectal tumors, and equivocal findings that could not be definitely assessed as a fistula were excluded...
November 24, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27878637/optimization-of-window-settings-for-standard-and-advanced-virtual-monoenergetic-imaging-in-abdominal-dual-energy-ct-angiography
#17
Damiano Caruso, Ashley H Parinella, U Joseph Schoepf, Maxwell H Stroebel, Stefanie Mangold, Julian L Wichmann, Akos Varga-Szemes, B Devon Ball, Domenico De Santis, Andrea Laghi, Carlo N De Cecco
OBJECTIVES: To determine the optimal window setting for displaying virtual monoenergetic reconstructions of third generation dual-source, dual-energy CT (DECT) angiography of the abdomen. METHODS: Forty-five patients were evaluated with DECT angiography (90/150 kV, 180/90 ref. mAs). Three datasets were reconstructed: standard linear blending (M_0.6), 70 keV traditional virtual monoenergetic (M70), and 40 keV advanced noise-optimized virtual monoenergetic (M40+)...
November 23, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27878636/imaging-of-secretory-tumors-of-the-gastrointestinal-tract
#18
REVIEW
Yehia M ElGuindy, Sanaz Javadi, Christine O Menias, Corey T Jensen, Haitham Elsamaloty, Khaled M Elsayes
Gastrointestinal secretory tumors, or gastroenteropancreatic neuroendocrine tumors, encompass a wide array of endocrine cell tumors. The significance of these tumors lies in their ability to alter physiology through hormone production as we well as in their malignant potential. Functioning tumors may present earlier due to symptomatology; conversely, non-functioning tumors are often diagnosed late as they reach large sizes, causing symptoms secondary to local mass effect. Imaging aids in the diagnosis, staging, and prognosis and provides key information for presurgical planning...
November 23, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27878635/the-focal-hepatic-hot-spot-hot-quadrate-sign
#19
REVIEW
Faisal Fahad Aloufi, Faisal Mohammed Alabdulkarim, Meshal Ali Alshahrani
No abstract text is available yet for this article.
November 23, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27878338/reporting-standards-for-the-imaging-based-diagnosis-of-renal-masses-on-ct-and-mri-a-national-survey-of-academic-abdominal-radiologists-and-urologists
#20
Matthew S Davenport, Eric M Hu, Andrew D Smith, Hersh Chandarana, Khaled Hafez, Ganesh S Palapattu, J Stuart Wolf, Stuart G Silverman
PURPOSE: To define important elements of a structured radiology report of a CT or MRI performed to evaluate an indeterminate renal mass. METHODS: IRB approval was waived for this multi-site prospective quality improvement study. A 35-question survey investigating elements of a CT or MRI report describing a renal mass was created through an iterative process by the Society of Abdominal Radiology Disease-Focused Panel on renal cell carcinoma. Surveys were distributed to consenting abdominal radiologists and urologists at nine academic institutions...
November 22, 2016: Abdominal Radiology
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