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Abdominal Radiology

journal
https://www.readbyqxmd.com/read/29332248/performance-of-diffusion-weighted-magnetic-resonance-imaging-at-3-0t-for-early-assessment-of-tumor-response-in-locally-advanced-rectal-cancer-treated-with-preoperative-chemoradiation-therapy
#1
Andrea Delli Pizzi, Roberta Cianci, Domenico Genovesi, Gianluigi Esposito, Mauro Timpani, Alessandra Tavoletta, Pierluigi Pulsone, Raffaella Basilico, Daniela Gabrielli, Consuelo Rosa, Luciana Caravatta, Monica Di Tommaso, Massimo Caulo, Antonella Filippone
PURPOSE: The purpose of the article is to determine whether changes in apparent diffusion coefficient (ADC) values of locally advanced rectal cancer (LARC) obtained 2 weeks after the beginning of chemoradiation therapy (CRT) allow to predict treatment response and whether correlate with tumor histopathologic response. METHODS: Forty-three patients receiving CRT for LARC and 3.0T magnetic resonance imaging with diffusion-weighted sequences before treatment, 2 weeks during, and 8 weeks post the completion of CRT were included...
January 13, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29332247/practical-advantages-of-contrast-enhanced-ultrasound-in-abdominopelvic-radiology
#2
Praveen Ganti Ranganath, Michelle L Robbin, Susan J Back, Edward G Grant, David T Fetzer
Computed tomography (CT) and magnetic resonance imaging (MRI) are two of the workhorse modalities of abdominopelvic radiology. However, these modalities are not without patient- and technique-specific limitations that may prevent a timely and accurate diagnosis. Contrast-enhanced ultrasound (CEUS) is an effective, rapid, and cost-effective imaging modality with expanding clinical utility in the United States. In this pictorial essay, we provide a case-based discussion demonstrating the practical advantages of CEUS in evaluating a variety of pathologies in which CT or MRI was precluded or insufficient...
January 13, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29318354/li-rads-a-glimpse-into-the-future
#3
REVIEW
Claude B Sirlin, Ania Z Kielar, An Tang, Mustafa R Bashir
This article provides a glimpse into the future of the Liver Imaging Reporting and Data System (LI-RADS), discussing the immediate and long-term plans for its continuing improvement and expansion. To complement the Core and Essentials components of the latest version of LI-RADS, a comprehensive manual will be released soon, and it will include technical recommendations, management guidance, as well as reporting instructions and templates. In this article, we briefly review the process by which LI-RADS has been developed until now, a process guided by a variable combination of data, expert opinion, and desire for congruency with other diagnostic systems in North America...
January 9, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29313114/bladder-cancer-local-staging-multiparametric-mri-performance-following-transurethral-resection
#4
Christian B van der Pol, Atul B Shinagare, Sree Harsha Tirumani, Mark A Preston, Mark G Vangel, Stuart G Silverman
PURPOSE: To evaluate the performance of multiparametric MRI (mpMRI) for the local staging of bladder cancer following transurethral resection of bladder tumor. METHODS: This Institutional Review Board-approved, retrospective study identified 45 patients with pathology-proven bladder cancer who underwent transurethral resection followed by mpMRI between August 2011 and October 2016. Two radiologists reviewed each MRI independently and assigned T and N stage. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy were calculated for the presence of muscle invasion (T2 or higher), peri-vesical invasion (T3 or higher), and regional nodal disease compared to findings at cystectomy as the reference standard...
January 9, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29313113/epidemiology-and-contemporary-management-of-abdominal-aortic-aneurysms
#5
Brant W Ullery, Richard L Hallett, Dominik Fleischmann
Abdominal aortic aneurysm (AAA) is most commonly defined as a maximal diameter of the abdominal aorta in excess of 3 cm in either anterior-posterior or transverse planes or, alternatively, as a focal dilation ≥ 1.5 times the diameter of the normal adjacent arterial segment. Risk factors for the development of AAA include age > 60, tobacco use, male gender, Caucasian race, and family history of AAA. Aneurysm growth and rupture risk appear to be associated with persistent tobacco use, female gender, and chronic pulmonary disease...
January 9, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29302738/comparison-between-the-diagnostic-accuracies-of-18f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-and-conventional-imaging-in-recurrent-urothelial-carcinomas-a-retrospective-multicenter-study
#6
Fabio Zattoni, Elena Incerti, Michele Colicchia, Paolo Castellucci, Stefano Panareo, Maria Picchio, Federico Fallanca, Alberto Briganti, Marco Moschini, Andrea Gallina, Jeffrey R Karnes, Val Lowe, Stefano Fanti, Riccardo Schiavina, Ilaria Rambaldi, Vincenzo Ficarra, Laura Evangelista
PURPOSE: To determine the performance accuracy of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) after primary tumor treatment for both bladder cancer (BC) and upper tract urothelial cancer (UTUC). To compare the accuracy of FDG PET/CT with that of contrast-enhanced-ceCT and magnetic resonance imaging (MRI). METHODS: Data of patients with recurrent urothelial carcinomas (UC) after primary treatment were collected in a retrospective, international multicenter study...
January 4, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29302737/anti-reflux-procedures-complications-radiologic-findings-and-surgical-and-gastroenterologic-perspectives
#7
J G Zarzour, D E Morgan, J P Callaway, M T Hawn, C L Canon, R E Koehler
This article provides an overview of the current surgical anti-reflux procedures and their imaging findings, as well as the surgical complications. Accurate and timely clinical assessment requires an engaged radiologist fluoroscopist who understands the perspectives of their interdisciplinary colleagues, including the surgeon and gastroenterologist. The complex pathophysiology calls for an interdisciplinary approach, and the radiologist needs to tailor their evaluation to answer the specific questions posed by their clinical colleagues and by the presenting symptomatology...
January 4, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29302736/diagnosing-common-bile-duct-obstruction-comparison-of-image-quality-and-diagnostic-performance-of-three-dimensional-magnetic-resonance-cholangiopancreatography-with-and-without-compressed-sensing
#8
Heejin Kwon, Scott Reid, Dongeun Kim, Sangyun Lee, Jinhan Cho, Jongyeong Oh
PURPOSE: This study aimed to evaluate image quality and diagnostic performance of a recently developed navigated three-dimensional magnetic resonance cholangiopancreatography (3D-MRCP) with compressed sensing (CS) based on parallel imaging (PI) and conventional 3D-MRCP with PI only in patients with abnormal bile duct dilatation. METHODS: This institutional review board-approved study included 45 consecutive patients [non-malignant common bile duct lesions (n = 21) and malignant common bile duct lesions (n = 24)] who underwent MRCP of the abdomen to evaluate bile duct dilatation...
January 4, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29285600/medical-oncology-and-pancreatic-cancer-what-the-radiologist-needs-to-know
#9
David R Fogelman, Gauri Varadhachary
The majority of PCs present as advanced disease, and treatment goals are for prolongation of life and palliation of the symptoms. Oncologists rely on our radiology colleagues to provide information on the extent of disease and the effectiveness of our treatment. The stakes rise in those patients where the disease has seemingly not spread and who might be treated with a goal of cure. For this subset of patients, medical oncologists and surgeons require as precise a radiologic description as possible in order to most accurately characterize the extent of the disease, in turn informing us as to the likelihood of a successful surgery and potential cure...
December 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29285599/computed-tomography-and-magnetic-resonance-imaging-of-peripelvic-and-periureteric-pathologies
#10
REVIEW
Ekim Gumeler, Mehmet Ruhi Onur, Ali Devrim Karaosmanoglu, Mustafa Ozmen, Deniz Akata, Musturay Karcaaltincaba
Peripelvic and periureteric areas are frequently overlooked in the imaging evaluations of the urinary system on computed tomography and magnetic resonance imaging. Several neoplastic and non-neoplastic disorders and diseases including lipomatosis, angiomyolipoma and angiolipomatous proliferation, vascular lesions, lymphangiomatosis, Rosai-Dorfman disease, Erdheim-Chester disease, extramedullary hematopoiesis, IgG4-related disease, lymphoma, mesenchymal tumors, trauma, and Antopol-Goldman lesion may involve these areas...
December 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29285598/diagnosis-of-budd-chiari-syndrome
#11
Morgane Van Wettere, Onorina Bruno, Pierre-Emmanuel Rautou, Valérie Vilgrain, Maxime Ronot
Budd-Chiari syndrome (BCS) is defined by clinical and laboratory signs associated with partial or complete impairment of hepatic venous drainage in the absence of right heart failure or constrictive pericarditis. Primary BCS is the most frequent type and is a complication of hypercoagulable states, in particular myeloproliferative neoplasms. Secondary BCS involves tumor invasion or extrinsic compression. Most patients present with chronic BCS including a non-cirrhotic, dysmorphic, chronic liver disease with various degrees of fibrosis deposition...
December 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29282489/the-li-rads-adventure-a-personal-statement
#12
Claude B Sirlin
No abstract text is available yet for this article.
December 27, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29279952/hidebound-bowel-sign
#13
REVIEW
Sergey Leshchinskiy, Robert D'Agostino
No abstract text is available yet for this article.
December 27, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29277858/multi-institutional-survey-on-imaging-practice-patterns-in-pancreatic-ductal-adenocarcinoma
#14
Avinash R Kambadakone, Atif Zaheer, Ott Le, Priya Bhosale, Jeffrey Meier, Alexander R Guimaraes, Zarine Shah, David M Hough, Lorenzo Mannelli, Erik Soloff, Arnold Friedman, Eric Tamm
PURPOSE: To study the practice patterns for performance and interpretation of CT/MRI imaging studies in patients with pancreatic ductal adenocarcinoma (PDAC) at multiple institutions using a survey-based assessment. METHODS: In this study, abdominal radiologists/body imagers on the Society of Abdominal Radiology disease-focused panel for PDAC and from multiple institutions participated in an online survey. The survey was designed to investigate the imaging and reporting practice patterns for PDAC...
December 26, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29264715/various-congenital-anomalies-of-the-inferior-vena-cava-review-of-cross-sectional-imaging-findings-and-report-of-a-new-variant
#15
REVIEW
Seung Soo Kim, Hyeong Cheol Shin, Jeong Ah Hwang, Sung Shick Jou, Woong Hee Lee, Seo-Youn Choi, Chan Ho Park
The inferior vena cava (IVC) is an important structure receiving a large amount of venous return and is associated with various congenital disorders. Advances in diagnostic imaging and its increasing accessibility have led to an increase in the incidental detection of IVC anomalies. Congenital anomalies of the IVC are not uncommon and are occasionally critical to treatment planning. However, they are frequently overlooked in abdominal imaging. The IVC is composed of four segments (intrahepatic, suprarenal, renal, and infrarenal), and each segment arises from different embryonic structures in a complex process...
December 20, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29260281/uncommon-evolutions-and-complications-of-common-benign-liver-lesions
#16
REVIEW
Federica Vernuccio, Maxime Ronot, Marco Dioguardi Burgio, Jérôme Lebigot, Wassim Allaham, Christophe Aubé, Giuseppe Brancatelli, Valérie Vilgrain
Frequently encountered on abdominal imaging studies, the majority of common benign liver lesions are asymptomatic, confidently diagnosed by imaging, and do not require further workup, follow-up, or treatment. The increasing use of multimodality liver imaging, has allowed the recognition of uncommon evolutions of common benign liver lesions such as size changes, fibrotic regression, and content and vascularization changes, and their complications such as rupture, hemorrhage, thrombosis, extrinsic compression, and malignancy...
December 19, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29260280/peri-tumoral-hyperintensity-on-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri-in-hepatocellular-carcinomas-correlation-with-peri-tumoral-hyperplasia-and-its-pathological-features
#17
Norihide Yoneda, Osamu Matsui, Azusa Kitao, Takahiro Komori, Kazuto Kozaka, Hiroko Ikeda, Kotaro Yoshida, Dai Inoue, Tetsuya Minami, Wataru Koda, Satoshi Kobayashi, Toshifumi Gabata
PURPOSE: Peri-tumoral hyperintensity (P-hyperintensity) is occasionally seen in hepatocellular carcinoma (HCC) on the hepatobiliary (HB) phase of gadoxetic acid-enhanced MRI (EOB-MRI). A recent study reported peri-tumoral hyperplasia (P-hyperplasia) associated with over-expression of glutamine synthetase (GS) in HCC or metastatic carcinoma. The aim of this study was to analyze the correlation between P-hyperintensity on the HB phase and GS expression indicating P-hyperplasia and reveal its pathological features...
December 19, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29260279/the-leather-bottle-stomach
#18
REVIEW
Nikita Consul, David J DiSantis, Raymond B Dyer
No abstract text is available yet for this article.
December 19, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29260278/role-of-contrast-enhanced-ultrasound-in-evaluation-of-the-bowel
#19
Alexandra Medellin, Christina Merrill, Stephanie R Wilson
Contrast-enhanced ultrasound (CEUS) of the gastrointestinal tract provides vascular information helpful for characterizing masses and other pathologies in and around the bowel, similar to contrast applications in other solid organs. However, the use of microbubble contrast agents for the bowel provides additional unique contributions as it gives both subjective and objective information about mural and mesenteric blood flow, invaluable for the determination of disease activity in those many patients affected by inflammatory bowel disease (IBD)...
December 19, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29260277/-l%C3%A3-cher-de-ballons-or-release-of-balloons-sign
#20
REVIEW
Zachary J LoVerde, Raymond B Dyer
No abstract text is available yet for this article.
December 19, 2017: Abdominal Radiology
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