梯度回波序列下骨骼肌的磁化传递对比成像

[Magnetization transfer contrast imaging of the skeletal muscle in gradient recalled echo sequence].

作者信息

Yoshioka H, Niitsu M, Anno I, Nakajima K, Nishimura H, Kajiyama K, Nakaya C, Itai Y

机构信息

Department of Radiology, University of Tsukuba.

出版信息

Nihon Igaku Hoshasen Gakkai Zasshi. 1993 Feb 25;53(2):223-5.

PMID:8488106

Abstract

The human midcalf muscle images were obtained using gradient recalled echo (GRE) sequence with and without magnetization transfer contrast (MTC) sequence. A significant decrease of relative signal intensity was observed in muscle with off-resonance irradiation. The percentage increase of signal intensity after dorsiflexion exercises was 55.6% and 29.0% for MTC-GRE and GRE sequence, respectively. MTC technique might be useful in improving contrast between many tissues as well as muscles.

摘要

使用梯度回波（GRE）序列以及带有和不带有磁化传递对比（MTC）序列获取人体小腿中部肌肉图像。在进行失谐照射的肌肉中观察到相对信号强度显著降低。背屈运动后，MTC-GRE序列和GRE序列的信号强度增加百分比分别为55.6%和29.0%。MTC技术可能有助于改善许多组织以及肌肉之间的对比度。