超声压力-应变环技术评估心肌做功研究进展

Research progresses of ultrasonic pressure strain loops technique in evaluation of myocardial work

基于二维斑点追踪成像(2D-STI)的心肌分层应变技术可用于定量评估心肌功能,但具有负荷依赖性。超声压力-应变环(PSL)技术在分层应变技术基础上加入后负荷(血压)测量,可有效抑制负荷依赖性,定量分析整体和节段心肌做功。本文对PSL评估心肌做功研究进展进行综述。

Based on 2 D speckle tracking imaging(2 D-STI),myocardium layer-specific strain can be used for quantitative assessment of myocardial function,but is load dependent.Added after-load(blood pressure)measurement to myocardium layer-specific strain,pressure strain loops(PSL)technique can effectively restrict load dependence and quantitatively analyze the work of whole and segmental myocardium.The research progresses of PSL in evaluation of myocardial work were reviewed in this article.