短 TI 反转恢复序列磁共振成像中脂肪抑制的改进：通过频谱显示选择反转时间

Improved fat suppression in STIR MR imaging: selecting inversion time through spectral display.

作者信息

Shuman W P, Lambert D T, Patten R M, Baron R L, Tazioli P K

机构信息

Department of Radiology, University of Washington School of Medicine, Seattle 98195.

出版信息

Radiology. 1991 Mar;178(3):885-7. doi: 10.1148/radiology.178.3.1994438.

DOI:10.1148/radiology.178.3.1994438

PMID:1994438

Abstract

By observing the fat-signal peak on the spectral display of a magnetic resonance (MR) imager while varying inversion time (TI), the authors determined the TI that produced the lowest fat peak for the best suppression of fat signal in subsequent short-TI inversion-recovery (STIR) MR imaging. In 25 volunteers who underwent imaging at multiple TIs, the TI that produced the lowest measured fat signal intensity was the same as that selected by means of TI tuning in 60% of cases and was within 5 msec in the remaining 40%.

摘要

通过在改变反转时间（TI）的同时观察磁共振（MR）成像仪频谱显示上的脂肪信号峰，作者确定了在随后的短TI反转恢复（STIR）MR成像中产生最低脂肪峰以实现最佳脂肪信号抑制的TI。在25名接受多个TI成像的志愿者中，产生最低测量脂肪信号强度的TI在60%的情况下与通过TI调谐选择的TI相同，在其余40%的情况下相差在5毫秒以内。