Frequency of Common Bile Duct Motion Artifacts Caused by Inferior Vena Cava Pulsation on Magnetic Resonance Cholangiopancreatography
| Autor: | Naoko Saito, Kazufumi Suzuki, Kazuhiro Maruyama, Norio Mitsuhashi, Takashi Suzuki, Eiko Ueno, Yugo Onodera, Mikihiko Fujimura, Haruhiko Machida, Takahiro Ohnishi, Chiaki Imura, Satoru Morita, Kunihiro Watanabe |
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| Rok vydání: | 2008 |
| Předmět: |
Adult
Male medicine.medical_specialty Cholangiopancreatography Magnetic Resonance Biliary Tract Diseases Contrast Media Vena Cava Inferior Ferric Compounds Inferior vena cava Motion Imaging Three-Dimensional Motion artifacts medicine Humans Radiology Nuclear Medicine and imaging In patient Aged Retrospective Studies Aged 80 and over Common Bile Duct Observer Variation Artifact (error) Magnetic resonance cholangiopancreatography Fourier Analysis Common bile duct medicine.diagnostic_test business.industry Pancreatic Diseases Magnetic resonance imaging Middle Aged Image Enhancement Rapid acquisition medicine.anatomical_structure medicine.vein Pulsatile Flow Female Radiology Artifacts business |
| Zdroj: | Magnetic Resonance in Medical Sciences. 7:31-36 |
| ISSN: | 1880-2206 1347-3182 |
| DOI: | 10.2463/mrms.7.31 |
| Popis: | Purpose: We assessed the frequency of common bile duct (CBD) motion artifacts caused by inferior vena cava (IVC) pulsation on magnetic resonance cholangiopancreatography (MRCP). Methods: We retrospectively evaluated CBD motion artifacts in 4 MRCP sequences from each of 115 consecutive patients. Results: 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 T2-weighted turbo spin-echo images. In 10 patients, we observed 9 (7.8%) pseudo-defects of the CBD on 3-dimensional T2-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 |
| Databáze: | OpenAIRE |
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