モリタ　サトル   Satoru Morita   森田　賢    所属   医学部 医学科（東京女子医科大学病院）    職種   講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Frequency of common bile duct motion artifacts caused by inferior vena cava pulsation on magnetic resonance cholangiopancreatography
掲載誌名	正式名：Magn Reson Med Sci ISSNコード：1347-3182
巻・号・頁	7(1),pp.31-6
著者・共著者	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.
担当区分	筆頭著者,責任著者
発行年月	2008
概要	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.
文献番号	18460846