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Cystic Artery Localization with a Three-dimensional Angiography Vessel Tracking System Compared with Conventional Two-dimensional Angiography.
MedLine Citation:
PMID:  21546264     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: During transcatheter hepatic therapy, the cystic artery feeding the gallbladder may inadvertently be exposed to tumor therapy. Localization of the cystic artery may help prevent exposure. The objective of this study was to compare the application of a vessel tracking system software based on three-dimensional (3D) angiography versus standard two-dimensional (2D) angiography for identifying the cystic artery and its origin. MATERIALS AND METHODS: A software system that can rapidly localize the cystic artery from a 3D common hepatic angiogram was applied in 25 patients and was compared with manual localization of the cystic artery with conventional 2D digital subtraction common hepatic angiograms. RESULTS: With the vessel tracking software prototype, 28 cystic arteries were retrogradely tracked in 25 of 25 cases. The origin sites were correctly located by the software in 27 of 28 cystic arteries, with one mistracked as a result of streak artifact. By contrast, on standard 2D hepatic angiography, the cystic artery was deemed visible with certainty in 12 of 25 cases (P < .001). The vessel tracking system revealed a 56% prevalence of extraanatomic distribution by the cystic artery, with the most common supply going to segment 5 liver parenchyma. CONCLUSIONS: The 3D vessel rapid tracking system has advantages over conventional 2D hepatic angiography in revealing the cystic artery and its origin site. It is also an important tool to identify the complete distribution of the cystic artery without superselective angiography. Supply to adjacent hepatic parenchyma or tumor by the cystic artery is not insignificant and should be considered during hepatic therapies.
Authors:
Xiaodong Wang; Rajesh P Shah; Majid Maybody; Karen T Brown; George I Getrajdman; Carsten Stevenson; Elena N Petre; Stephen B Solomon
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-4
Journal Detail:
Title:  Journal of vascular and interventional radiology : JVIR     Volume:  -     ISSN:  1535-7732     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9203369     Medline TA:  J Vasc Interv Radiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 SIR. Published by Elsevier Inc. All rights reserved.
Affiliation:
Department of Interventional Radiology, Peking University Cancer Hospital and Institute and Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China; Department of Radiology and Interventional Radiology Service, Memorial Sloan-Kettering Cancer Center, 1275 York Ave., H118, New York, NY 10021.
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