This item still needs to be validated !
Title: Clinical validation of high-resolution fast spin-echo MR colonography after colon distention with air
Authors: Bielen, Didier ×
Bosmans, Hilde
De Wever, Liesbeth
Maes, Frederik
Tejpar, Sabine
Vanbeckevoort, Dirk
Marchal, Guy #
Issue Date: Sep-2005
Publisher: Society for Magnetic Resonance Imaging
Series Title: Journal of Magnetic Resonance Imaging vol:22 issue:3 pages:400-405
Abstract: To evaluate the feasibility of MR colonography (MRC) with air using two-dimensional (2D) T1-weighted fast spin-echo (T1wFSE) in patients scheduled for conventional colonoscopy (CC) after classic bowel preparation, and assess the ability of the technique to detect colonic lesions. The distention was sufficient for diagnosis, and the technique provided adequate delineation of the wall in the majority of segments. Residual fluid obscured the wall in different segments, especially in the ascending and descending colon (supine position) and in the cecum, transverse, and sigmoid colon (prone position). These findings were consistent with CT colonography. MRC visualized three lesions, missed one lesion >10 mm, visualized none of four lesions <5 mm, and yielded one false-positive lesion (5-10 mm). Missed lesions can be due to inconsistency in the slice positions between consecutive breath-holds, which is inherent to the multishot technique. Residual fluid may have obscured the smaller lesions. The shortcomings of the technique are limited coverage and signal drop-off at the borders of the field of view (FOV). Before multishot 2D T1wFSE colonography can become a valid screening method, improved patient preparation and a more practical technique are needed.
ISSN: 1053-1807
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - PSI, Processing Speech and Images
Translational Research in GastroIntestinal Disorders
Molecular Digestive Oncology (+)
× corresponding author
# (joint) last author

Files in This Item:
File Status SizeFormat
Bielen05JMRI.pdf Published 395KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science