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心肌应变率(strain rate,SR)成像技术(SRI)是在心肌组织速度成像基础上发展起来的一项新技术,是一种无创伤性检查方法。它用毫米级进行定量,是继组织速度显像技术(tissue velocity imaging,TVI)和组织位移追踪技术(tissue tracking)后,评价心脏舒缩功能和室壁运动等的新参数。
The strain rate (SR) imaging technique (SRI) is a new technique based on myocardial tissue velocity imaging. It is a non-invasive method. It is quantified on a millimeter scale and is a new parameter for assessing cardiac systolic and diastolic function and ventricular wall motion following tissue velocity imaging (TVI) and tissue tracking.