Satoru Morita    Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine    Position   Assistant Professor
Article types	Original article
Language	English
Peer review	Peer reviewed
Title	Frequency of common bile duct motion artifacts caused by inferior vena cava pulsation on magnetic resonance cholangiopancreatography
Journal	Formal name：Magn Reson Med Sci ISSN code：1347-3182
Volume, Issue, Page	7(1),pp.31-6
Author and coauthor	Morita, S., Ueno, E., Saito, N., Suzuki, K., Machida, H., Fujimura, M., Maruyama, K., Onodera, Y., Watanabe, K., Suzuki, T., Ohnishi, T., Imura, C., Mitsuhashi, N.
Authorship	Lead author,Corresponding author
Publication date	2008
Summary	We assessed the frequency of common bile duct (CBD) motion artifacts caused by inferior vena cava (IVC) pulsation on magnetic resonance cholangiopancreatography (MRCP).|We retrospectively evaluated CBD motion artifacts in 4 MRCP sequences from each of 115 consecutive patients.|We observed 37 (32.2%) ghost artifacts at the ventral and dorsal aspects of the CBD on transaxial, half-Fourier acquisition single-shot turbo spin-echo (HASTE-ax) images; no such artifacts were observed on transaxial T(2)-weighted turbo spin-echo images. In 10 patients, we observed 9 (7.8%) pseudo-defects of the CBD on 3-dimensional T(2)-weighted turbo spin-echo with navigator-triggered prospective acquisition correction technique MRCP and 6 (5.2%) pseudo-defects on single-shot rapid acquisition with relaxation enhancement MRCP. Pseudo-defects were significantly more frequent in patients with ghost artifacts than without (9 of 37 [24.3%] versus one of 78 [1.3%]; P<0.01, McNemar test).|Although uncommon, pseudo-defects of the CBD caused by IVC pulsation are observed on MRCP. MRCP interpretation that includes comparison with HASTE-ax images can diminish the potential misinterpretation of such CBD motion artifact as bile duct tumor or biliary stone.
Document No.	18460846