Satoru Morita
Department School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine Position Assistant Professor |
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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 |