应用定量组织速度成像评价肥厚型心肌病患者心功能

目的 探讨定量组织速度成像技术评价正常人和肥厚型心肌病患者局部心肌收缩和舒张功能的价值。方法 采集正常人18例和肥厚型心肌病患者20例的动态组织多普勒图像后，分别测量其不同心肌节段在收缩期、舒张早期和舒张晚期的峰值速度，对两组结果进行分析比较。结果 肥厚型心肌病组收缩期峰值速度、舒张早期峰值速度及舒张早期与舒张晚期峰值速度之比均明显小于正常组，而舒张晚期峰值速度与正常组的差异无显著性意义。结论 定量组织速度成像显示肥厚型心肌病患者左心室收缩功能和舒张功能均较正常人减低。

Evaluate regional myocardial function of hypertrophic cardiomyopathy patients by quantitative tissue velocity imaging

Objective To explore value of quantitative tissue velocity imaging(QTVI) in the regional systolic and diastolic myocardial function of hypertrophic cardiomyopathy(HCM) patients and healthy persons. Methods By Doppler myocardial imaging 20 HCM patients and 18 healthy subjects were collected,then the regional velocity were measured in the mid and basal segment in systolic,early diastolic and later diastolic period respectively. Results The parameters as systolic velocity(Vs),early diastolic velocity(Ve) and early systolic velocity/later diastolic velocity (Ve/Va) of the HCM group were significantly lower than those of the normal group,while later diastolic velocity(Va) showed no statistic difference between two groups. Conclusions The systolic and diastolic myocardial functions of hypertrophic cardiomyopathy patients are reduced. The abnormality of heart function in HCM patients could be accurately detected by QTVI.