脂肪与水磁共振成像。

Fat and water magnetic resonance imaging.

作者信息

Bley Thorsten A, Wieben Oliver, François Christopher J, Brittain Jean H, Reeder Scott B

机构信息

Department of Radiology, University of Wisconsin, Madison, Wisconsin, USA.

出版信息

J Magn Reson Imaging. 2010 Jan;31(1):4-18. doi: 10.1002/jmri.21895.

DOI:10.1002/jmri.21895

PMID:20027567

Abstract

A wide variety of fat suppression and water-fat separation methods are used to suppress fat signal and improve visualization of abnormalities. This article reviews the most commonly used techniques for fat suppression and fat-water imaging including 1) chemically selective fat suppression pulses "FAT-SAT"; 2) spatial-spectral pulses (water excitation); 3) short inversion time (TI) inversion recovery (STIR) imaging; 4) chemical shift based water-fat separation methods; and finally 5) fat suppression and balanced steady-state free precession (SSFP) sequences. The basic physical background of these techniques including their specific advantages and disadvantages is given and related to clinical applications. This enables the reader to understand the reasons why some fat suppression methods work better than others in specific clinical settings.

摘要

各种各样的脂肪抑制和水脂分离方法被用于抑制脂肪信号并改善异常的可视化。本文回顾了最常用的脂肪抑制和水脂成像技术，包括：1）化学选择性脂肪抑制脉冲“FAT-SAT”；2）空间谱脉冲（水激发）；3）短反转时间（TI）反转恢复（STIR）成像；4）基于化学位移的水脂分离方法；最后是5）脂肪抑制和平衡稳态自由进动（SSFP）序列。文中给出了这些技术的基本物理背景，包括它们的具体优缺点，并与临床应用相关联。这使读者能够理解为什么某些脂肪抑制方法在特定临床环境中比其他方法效果更好。