STI技术评价PCI手术前后左室整体纵向收缩期应变率(GLSrsys)、整体纵向收缩期应变(GLSsys)、峰值应变(GLSp)；局部纵向收缩期应变率(SrLsys)、收缩期应变(SLsys)、峰值应变(SLp)；扭转角度峰值(Ptw)、解旋率(untw R)、解旋减半时间(HTU)，...
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给出了六个测试点不同测试时段峰值应变列表；
Strain peaks of six test points during different time periods were also acquired in experiments.
峰值应变随应变率增大有增长的趋势，极限应变没有明显的率敏感性；
The peak strain has a increasing tendency with the increase in strain rate; and the ultimate strain is not sensitive to the strain rate.
结果冠心病病人缺血心肌的收缩期峰值应变表现为明显减低、消失，甚至倒置。
Results Peak systolic strain of ischemic myocardium in patient with CHD was significantly lower, disappeared, or even showed inversion.
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