Document Detail

The use of CT or MRI for the one-stage placement of stents in biliary obstructions.
MedLine Citation:
PMID:  20658449     Owner:  NLM     Status:  MEDLINE    
PURPOSE: This study describes and evaluates a simple method of percutaneous intervention planning in order to treat obstructed biliary systems using computed tomography (CT) or magnetic resonance imaging (MRI).
MATERIALS AND METHODS: CT (n=18) and MRI (n=31) examinations, which were performed during the imaging work-up of 31 patients with malignant biliary obstruction, were used to plan transhepatic percutaneous biliary intervention. The appropriate intrahepatic duct, the entry point on the skin, and the puncture direction and depth were determined on axial CT or MR images. Under fluoroscopic guidance, a 21-G needle was used for puncture, and the puncture was followed by a percutaneous transhepatic cholangiography, the placement of a stent, and the placement of an external drainage catheter.
RESULTS: The biliary system was successfully accessed on the first attempt in 16 patients (51.6%). Second or third attempts were required in eight (25.8%) and two (6.4%) patients, respectively, whereas more than three attempts were necessary for the remaining five (16.3%) patients. One-stage percutaneous transhepatic biliary stent placement was performed in 29 patients (93.5%). Two (n=1) and three (n=1) interventional sessions were required in order to successfully complete stent placement in the remaining two cases. The mean fluoroscopy time for one-stage biliary stent placement was 12.6 min +/- 2.6 min, and no major complications were noted.
CONCLUSION: Thorough CT/MRI-based planning is suggested prior to the interventional treatment of malignant biliary obstruction so as to reduce the number of needle passes, the duration of the procedure, the fluoroscopy time, and the number of complications.
Vasileios Souftas; Antonios Kozadinos; Michalis Mantatzis; Panos Prassopoulos
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Publication Detail:
Type:  Journal Article     Date:  2010-07-26
Journal Detail:
Title:  Diagnostic and interventional radiology (Ankara, Turkey)     Volume:  16     ISSN:  1305-3612     ISO Abbreviation:  Diagn Interv Radiol     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-25     Completed Date:  2011-02-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241152     Medline TA:  Diagn Interv Radiol     Country:  Turkey    
Other Details:
Languages:  eng     Pagination:  241-4     Citation Subset:  IM    
Department of Medical Imaging, Interventional Radiology Unit, University Hospital of Alexandroupolis, Medical School, Alexandroupolis, Greece.
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MeSH Terms
Aged, 80 and over
Cholangiography / adverse effects*
Cholestasis / radiography*,  surgery
Fluoroscopy / adverse effects
Jaundice, Obstructive / etiology,  pathology,  radiography,  surgery
Magnetic Resonance Imaging / methods*
Middle Aged
Neoplasms / complications
Stents / adverse effects*
Tomography, X-Ray Computed / adverse effects,  methods*
Treatment Outcome

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