磁共振特征追踪技术评估心肌应变的应用进展

The application progress of magnetic resonance future tracking technique to evaluate myocardial strain

心脏磁共振特征追踪技术是在心脏磁共振电影序列图像基础上,通过后处理软件无创性测量心肌应变的新技术,该技术操作简单方便,无需增加额外扫描序列,且有较好的可重复性。心肌应变指心肌纤维在张力作用下的形变能力,可以定量评估心肌整体和局部的运动功能。目前心脏磁共振特征追踪技术在心肌应变方面的研究有着十分迅速的发展,现对该技术基本原理、临床应用及前景作以综述。

Cardiac magnetic resonance feature tracking technology is a new technique for noninvasive measurement of myocardial strain through post-processing software based on cardiac magnetic resonance cine sequence images. This technique is simple and convenient to operate, no extra sequence scanning is needed, and it has good repeatability. Myocardial strain refers to the deformability of myocardial fibers under tension, which can quantitatively evaluate the overall and local motor function of the myocardium. At present, cardiac magnetic resonance feature tracking technology has a very rapid development in the research of myocardial strain, and this paper reviews the basic principle, clinical application and prospect of this technique.