2008年9月
High-spatial-resolution three-dimensional MR cholangiography using a high-sampling-efficiency technique (SPACE) at 3T: Comparison with the conventional constant flip angle sequence in healthy volunteers
JOURNAL OF MAGNETIC RESONANCE IMAGING
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- 巻
- 28
- 号
- 3
- 開始ページ
- 685
- 終了ページ
- 690
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/jmri.21484
- 出版者・発行元
- JOHN WILEY & SONS INC
Purpose: To evaluate the image quality of high-spatial-resolution three-dimensional magnetic resonance cholangiography (MRC) with a high-sampling-efficiency technique (sampling perfection with application optimized contrasts using different (lip angle evolutions [SPACE]) in comparison with a conventional constant flip angle (FA) sequence at 3T.
Materials and Methods: Eighteen volunteers were examined on a 3T MR unit: using MRC imaging performed with three different free-breathing three-dimensional T2-weighted turbo spin-echo (TSE) sequences: 1) SPACE (spatial resolution. 1.1 x 1.0 x 0.84 mm), 2) constant FA (1.1 x 1.0 x 0.84 mm), and 3) SPACE at a higher resolution (SPACE HR; 1.0 x 0.9 x 0.644 mm). A five-point scale was used to compare overall image quality and visualization of the third branches of the bile duct (B2, B6, and B8). Depictions of cystic duct insertion and the highest order of bile duct visible were also compared.
Results: MRC with SPACE and SPACE HR sequences produced significantly better overall image quality than the constant FA sequence. In all analyses of duct visibility. SPACE and SPACE HR sequences showed higher scores than the constant FA sequence.
Conclusion: High-resolution three-dimensional MRC with SPACE at 3T allows high-quality imaging of the biliary tract, and has the ability to depict nondilated intrahepatic bile ducts (IHBD) in healthy volunteers.
Materials and Methods: Eighteen volunteers were examined on a 3T MR unit: using MRC imaging performed with three different free-breathing three-dimensional T2-weighted turbo spin-echo (TSE) sequences: 1) SPACE (spatial resolution. 1.1 x 1.0 x 0.84 mm), 2) constant FA (1.1 x 1.0 x 0.84 mm), and 3) SPACE at a higher resolution (SPACE HR; 1.0 x 0.9 x 0.644 mm). A five-point scale was used to compare overall image quality and visualization of the third branches of the bile duct (B2, B6, and B8). Depictions of cystic duct insertion and the highest order of bile duct visible were also compared.
Results: MRC with SPACE and SPACE HR sequences produced significantly better overall image quality than the constant FA sequence. In all analyses of duct visibility. SPACE and SPACE HR sequences showed higher scores than the constant FA sequence.
Conclusion: High-resolution three-dimensional MRC with SPACE at 3T allows high-quality imaging of the biliary tract, and has the ability to depict nondilated intrahepatic bile ducts (IHBD) in healthy volunteers.
- リンク情報
- ID情報
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- DOI : 10.1002/jmri.21484
- ISSN : 1053-1807
- PubMed ID : 18777552
- Web of Science ID : WOS:000259106900017