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Abdominal Radiology

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https://www.readbyqxmd.com/read/28331942/contrast-enhanced-ultrasound-for-differentiating-benign-from-malignant-solid-small-renal-masses-comparison-with-contrast-enhanced-ct
#1
Shu-Ping Wei, Chao-Li Xu, Qing Zhang, Qi-Rui Zhang, Yan-E Zhao, Peng-Fei Huang, Ying-Dong Xie, Chang-Sheng Zhou, Fu-Li Tian, Bin Yang
PURPOSE: The study aimed to compare the diagnostic efficiency of contrast-enhanced ultrasound (CEUS) with that of contrast-enhanced computed tomography (CECT) in the evaluation of benign and malignant small renal masses (SRMs) (<4 cm) confirmed by pathology. METHODS: A total of 118 patients with 118 renal masses smaller than 4 cm diagnosed by both CEUS and CECT were enrolled in this study, including 25 benign lesions and 93 malignant lesions. All lesions were confirmed by histopathologic diagnosis after surgical resection...
March 22, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28331941/snowstorm-testes
#2
REVIEW
Eduardo Kaiser Ururahy Nunes Fonseca, Fernando Ide Yamauchi, Leonardo Lima Borges, Miguel José Francisco Neto, Ronaldo Hueb Baroni
No abstract text is available yet for this article.
March 22, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28326456/the-stipple-sign
#3
REVIEW
Virginia Planz, Raymond B Dyer
No abstract text is available yet for this article.
March 22, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28315929/adnexal-masses-associated-with-peritoneal-involvement-diagnosis-with-ct-and-mri
#4
REVIEW
Audrey Ognong-Boulemo, Anthony Dohan, Christine Hoeffel, Agatha Stanek, François Golfier, Olivier Glehen, Pierre-Jean Valette, Pascal Rousset
Given the unique intra-peritoneal anatomic location of the adnexa, tubo-ovarian diseases can commonly spread into the peritoneal cavity. Peritoneal seeding may occur in a spectrum of adnexal conditions including infectious diseases, endometriosis, and benign or malignant primary or secondary ovarian tumors. CT is usually the imaging modality on which the concomitant involvement of the peritoneum and the ovary is depicted. The first diagnosis to be considered by the radiologist is generally peritoneal carcinomatosis from ovarian cancer but other conditions cited above have also to be borne in mind and may be suggested on the basis of careful assessment of CT findings or on further MR findings...
March 18, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28314917/chilaiditi-sign
#5
REVIEW
Venkatraman Indiran, Kanakaraj Kannan, T Ramachandra Prasad, Prabakaran Maduraimuthu
No abstract text is available yet for this article.
March 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28314916/texture-analysis-of-the-liver-at-mdct-for-assessing-hepatic-fibrosis
#6
Meghan G Lubner, Kyle Malecki, John Kloke, Balaji Ganeshan, Perry J Pickhardt
PURPOSE: To evaluate CT texture analysis (CTTA) for staging of hepatic fibrosis (stages F0-F4) METHODS: Quantitative texture analysis (QTA) of the liver was performed on abdominal MDCT scans using commercially available software (TexRAD), which uses a filtration-histogram statistic-based technique. Single-slice ROI measurements of the total liver, Couinaud segments IV-VIII, and segments I-III were obtained. CTTA parameters were correlated against fibrosis stage (F0-F4), with biopsy performed within one year for all cases with intermediate fibrosis (F1-F3)...
March 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28299494/high-pitch-low-dose-abdominopelvic-ct-with-tin-filtration-technique-for-detecting-urinary-stones
#7
Gu-Mu-Yang Zhang, Bing Shi, Hao Sun, Hua-Dan Xue, Yun Wang, Ji-Xiang Liang, Kai Xu, Ming Wang, Man Wang, Min Xu, Zheng-Yu Jin
OBJECTIVES: To evaluate urinary stone detection, radiation exposure, image quality, breathing-motion artifacts, and scanning time with high-pitch tin filter-based abdominopelvic CT. METHODS: Sixty-three consecutive patients with urolithiasis underwent non-enhanced abdominopelvic CT with both regular (120 kV, pitch 0.6) and low-dose (Sn150kV, pitch 3.0) protocols on a third-generation dual-source CT. Stone characteristics, image noise (SD), signal-to-noise ratio (SNR), subjective image quality on a 5-point likert scale breathing-motion artifacts, and scanning time were evaluated...
March 15, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28293721/post-whipple-imaging-in-patients-with-pancreatic-ductal-adenocarcinoma-association-with-overall-survival-a-multivariate-analysis
#8
Azadeh Elmi, Janet Murphy, Sandeep Hedgire, Shaunagh McDermott, Seyed-Mahdi Abtahi, Elkan Halpern, Carlos Fernandez-Del Castillo, Mukesh Harisinghani
PURPOSE: To compare the survival outcomes in patients with pancreatic ductal adenocarcinoma (PDAC) who had regular imaging surveillance with those who had clinical follow-up after Whipple. METHOD: We identified 229 patients, who underwent Whipple for resection of PDAC from 2005 to 2011, and had regular postoperative clinical follow-up at our hospital. Patients were retrospectively selected for two follow-up groups: imaging surveillance (IS) defined as routine imaging at scheduled intervals, vs...
March 14, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28293720/pathologic-correlation-of-transperineal-in-bore-3-tesla-magnetic-resonance-imaging-guided-prostate-biopsy-samples-with-radical-prostatectomy-specimen
#9
Erik Velez, Andriy Fedorov, Kemal Tuncali, Olutayo Olubiyi, Christopher B Allard, Adam S Kibel, Clare M Tempany
PURPOSE: To determine the accuracy of in-bore transperineal 3-Tesla (T) magnetic resonance (MR) imaging-guided prostate biopsies for predicting final Gleason grades in patients who subsequently underwent radical prostatectomy (RP). METHODS: A retrospective review of men who underwent transperineal MR imaging-guided prostate biopsy (tpMRGB) with subsequent radical prostatectomy within 1 year was conducted from 2010 to 2015. All patients underwent a baseline 3-T multiparametric MRI (mpMRI) with endorectal coil and were selected for biopsy based on MR findings of a suspicious prostate lesion and high degree of clinical suspicion for cancer...
March 14, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28293719/placental-recess-accompanied-by-a-t2-dark-band-a-new-finding-for-diagnosing-placental-invasion
#10
Tomomi Sato, Naoko Mori, Osamu Hasegawa, Takeshi Shigihara, Keiya Fujimori, Kazuhiro Tasaki, Fumio Shishido
PURPOSE: Our aim was to assess the usefulness of a new magnetic resonance imaging (MRI) finding, the placental recess, for diagnosing placental invasion. METHODS: This retrospective study included 51 patients (mean age 34.1 years, range 26-43 years) with suspected placental invasion who underwent cesarean section. Preoperative MRI was performed using a 1.5-T unit and included axial, sagittal, and coronal T2-weighted imaging (T2WI) with half-Fourier fast spin-echo sequences...
March 14, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28283708/three-things-every-radiologist-should-know-about-dual-energy-ct
#11
Desiree E Morgan
No abstract text is available yet for this article.
March 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28280876/quantitative-computer-aided-diagnostic-algorithm-for-automated-detection-of-peak-lesion-attenuation-in-differentiating-clear-cell-from-papillary-and-chromophobe-renal-cell-carcinoma-oncocytoma-and-fat-poor-angiomyolipoma-on-multiphasic-multidetector-computed
#12
Heidi Coy, Jonathan R Young, Michael L Douek, Matthew S Brown, James Sayre, Steven S Raman
OBJECTIVE: To evaluate the performance of a novel, quantitative computer-aided diagnostic (CAD) algorithm on four-phase multidetector computed tomography (MDCT) to detect peak lesion attenuation to enable differentiation of clear cell renal cell carcinoma (ccRCC) from chromophobe RCC (chRCC), papillary RCC (pRCC), oncocytoma, and fat-poor angiomyolipoma (fp-AML). MATERIALS AND METHODS: We queried our clinical databases to obtain a cohort of histologically proven renal masses with preoperative MDCT with four phases [unenhanced (U), corticomedullary (CM), nephrographic (NP), and excretory (E)]...
March 9, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28271275/cholangiocarcinoma-classification-diagnosis-staging-imaging-features-and-management
#13
REVIEW
Irai S Oliveira, Aoife Kilcoyne, Jamie M Everett, Mari Mino-Kenudson, Mukesh G Harisinghani, Karthik Ganesan
Cholangiocarcinoma is a relatively uncommon malignant neoplasm with poor prognosis. The distinction between extrahepatic and intrahepatic subtypes is important as epidemiological features, biologic and pathologic characteristics, and clinical course are different for both entities. This review study focuses on the role imaging plays in the diagnosis, classification, staging, and post-treatment assessment of cholangiocarcinoma.
March 7, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28271274/split-bolus-ct-urogram-is-less-more
#14
Hiram Shaish, Jeffrey H Newhouse
PURPOSE: To determine the accuracy of split-bolus CT urogram (SB-CTU) without special maneuvers for ureteral distention in diagnosing upper urinary tract urothelial carcinoma (UCA). MATERIALS AND METHODS: A hospital database was searched from 1/1/10, to 9/1/15, for SB-CTU exams without special maneuvers for ureteral distention. Accuracy of SB-CTU for detecting upper and lower urinary tract UCA was computed by comparing the prospective radiology report with cystoscopy, ureteroscopy, and/or urologic clinical follow-up...
March 7, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28265707/distinguished-reviewer-acknowledgements
#15
(no author information available yet)
No abstract text is available yet for this article.
March 7, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28265706/type-1-papillary-renal-cell-carcinoma-differentiation-from-type-2-papillary-rcc-on-multiphasic-mdct
#16
Jonathan R Young, Heidi Coy, Michael Douek, Pechin Lo, James Sayre, Allan J Pantuck, Steven S Raman
PURPOSE: To investigate whether multiphasic MDCT enhancement can help differentiate type 1 papillary renal cell carcinoma (RCC) from type 2 papillary RCC. METHODS: With IRB approval for this HIPAA-compliant retrospective study, we derived a cohort of 36 type 1 papillary RCCs and 33 type 2 papillary RCCs with preoperative multiphasic MDCT with up to four phases (unenhanced, corticomedullary, nephrographic, and excretory) from 2000 to 2013. Following segmentation, a computer-assisted detection (CAD) algorithm selected a 0...
March 7, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28265705/abdominal-schwannomas-review-of-imaging-findings-and-pathology
#17
REVIEW
Nam Ju Lee, Ralph H Hruban, Elliot K Fishman
Schwannomas are typically slow growing, encapsulated benign neoplasms. Visceral schwannomas are rare, and preoperative diagnosis is challenging, as they are often confused with other neoplasms even with advanced imaging studies. Surgical excision is usually needed to establish a definitive diagnosis, as pathology is the "gold standard." We review the imaging findings of abdominal schwannomas focusing on pancreatic, gastrointestinal, and retroperitoneal/adrenal schwannomas with pathology correlation. We conclude that schwannoma should be included in the broad differential diagnosis of an abdominal mass and that when it is unnecessary radical resection can be avoided...
March 6, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28260171/renal-tumors-with-low-signal-intensities-on-t2-weighted-mr-image-radiologic-pathologic-correlation
#18
REVIEW
Youyeon Kim, Deuk Jae Sung, Ki Choon Sim, Na Yeon Han, Beom Jin Park, Min Ju Kim, Sung Bum Cho
Accurate characterization of renal masses is essential for ensuring appropriate management. Low T2 signal intensity is a common feature of papillary renal cell carcinoma and fat-poor angiomyolipoma. Nonetheless, other types of renal cell carcinoma, oncocytoma, hemangioma, lymphoma, leiomyoma, and urothelial cell carcinoma also can show low signal intensities on T2-weighted imaging (T2WI). Histopathologic features that can lead to low T2 signal intensities in renal tumors include smooth muscle component, papillary architecture, a high nucleus-to-cytoplasm ratio, and hemorrhage...
March 4, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28260170/usefulness-of-3d-balanced-turbo-field-echo-mr-sequence-evaluating-the-branching-pattern-of-the-intrahepatic-bile-ducts-comparison-with-drip-infusion-ct-cholangiography
#19
Masaki Ogawa, Yoshiyuki Ozawa, Kengo Ohta, Tomoya Sekiguchi, Shingo Omata, Misugi Urano, Yoichi Matsuo, Yuta Shibamoto
PURPOSE: For liver surgery, it is crucial to preoperatively examine the course of the right posterior bile duct. While MR cholangiopancreatography (MRCP) can only visualize the bile ducts, 3D balanced turbo-field-echo (BTFE) sequence clearly depicts the bile ducts and portal veins as well as drip infusion CT cholangiography (DIC-CT), without contrast media. We evaluated whether BTFE could substitute for DIC-CT. MATERIALS AND METHODS: Thirty patients undergoing MRCP and BTFE on 1...
March 4, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28260169/imaging-in-the-post-partum-period-clinical-challenges-normal-findings-and-common-imaging-pitfalls
#20
REVIEW
Attor Al-Muzrakchi, Noorulhuda Jawad, Mary Crofton, Shahla Ahmed, Elizabeth Dick, Wladyslaw Gedroyc, Nishat Bharwani
Complex physiological and biochemical changes occur in women during the post-partum period, many of which are incompletely understood. There are limited descriptions within the medical literature about expected imaging findings during this period and this review aims to illustrate 'normal' appearances following vaginal delivery and Cesarean section. We will also discuss some of the pertinent clinical challenges and imaging pitfalls encountered in assessing the post-partum female.
March 4, 2017: Abdominal Radiology
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