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Title: MDCT diagnosis of post-traumatic hepatic arterio-portal fistulas
Authors: Coung Nguyen
Nitima Saksobahavivat
Kathirkamanathan Shanmuganathan
Scott Steenburg
Fred Moeslein
Stuart E. Mirvis
William Chiu
Mahidol University
University of Maryland Medical Center
University of Maryland, Baltimore
University of Maryland R Adams Cowley Shock Trauma Center
Keywords: Medicine
Issue Date: 1-Jun-2013
Citation: Emergency Radiology. Vol.20, No.3 (2013), 225-232
Abstract: The purpose of this study is to evaluate the performance of multidetector computed tomography (MDCT) in diagnosing arterioportal fistulas (APF) in high-grade liver injury. A retrospective analysis of catheter-based hepatic angiograms performed for major penetrating and blunt liver injuries identified 11 patients with APFs. Using the trauma registry, two additional demographically matched groups with and without liver injury were formed. A randomized qualitative consensus review of 33 MDCTs was performed by three trauma radiologists for the following MDCT findings of APF: transient hepatic parenchymal attenuation differences (THPAD), early increased attenuation of a peripheral or central portal vein compared with the main portal vein, and the "double-barrel" or "rail tract" signs. THPAD was the most sensitive finding and also had a high specificity for diagnosing APF. Both the early increased attenuation of a peripheral or central portal vein compared with the main portal vein and the double-barrel or rail tract signs had a100% specificity and a sensitivity of 64% and 36%, respectively. Measurement of differences in attenuation values between the APF and the contralateral central portal vein was most sensitive and specific in diagnosing APF. Traumatic APF of the liver can be optimally diagnosed with arterial phase imaging of solid organ using MDCT. © 2012 Am Soc Emergency Radiol.
ISSN: 14381435
Appears in Collections:Scopus 2011-2015

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