| Percutaneous transhepatic cholangiodrainage under real-time MRI guidance: Initial experience in an animal model. | |
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MedLine Citation:
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PMID: 21592872 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: To assess percutaneous transhepatic cholangiodrainage (PTCD) under real-time MRI-guidance and compare it to procedures performed under fluoroscopy. METHODS: We developed an in vitro model for MRI-guided and conventional PTCD, using an animal organ set including liver and bile ducts placed in an MRI-compatible box and tested it in a 1.0-Tesla open MRI-scanner. Prototype 18G needles and guide wires, standard guide wires, dilatation bougies, and drainages were used (MRI-compatible). MRI-visualization was by means of a bFFE real-time sequence using a surface coil (Flex-L). Outcome measurements were success rates and time needed for bile duct puncture using real-time MRI-guidance versus conventional radiologic methods in the model. Cannulation and drainage placement were also analysed. RESULTS: Fifty MRI-guided experiments were performed, leading to rapid (mean: 43s, range: 15-72s) and successful puncture and cannulation in 96% of procedures. Median drainage placement time was 321.5s (range: 241-411s). In 35 control experiments under fluoroscopy, puncture success was 69%, whereas times were significantly longer (mean 273s, range 45-631s). CONCLUSIONS: Initial in vitro experience shows that PTCD can be successfully and rapidly performed under real-time MRI-guidance and demonstrates improved performance compared to the conventional radiologic approach. |
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Authors:
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Ioannis S Papanikolaou; Ivo R van der Voort; Jens Rump; Christian J Seebauer; Sascha S Chopra; Florian Wichlas; René Schilling; Thula Walter; Maria G Papas; Bertram Wiedenmann; Ulf K Teichgräber; Thomas Rösch |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-16 |
Journal Detail:
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Title: Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver Volume: - ISSN: 1878-3562 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100958385 Medline TA: Dig Liver Dis Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
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Central Interdisciplinary Endoscopy Unit, Charité University Hospitals Berlin, Campus Virchow Hospital, Berlin, Germany; Research Group for Engineering Instruments for the open MRI, Charité University Hospitals Berlin, Berlin, Campus Charité Mitte, Berlin, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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