应变成像技术对肥厚型心肌病患者和正常人心功能的评价

目的 应用应变成像技术对肥厚型心肌病患者和正常人的心功能进行研究。方法 采集肥厚型心肌病患者20例和正常对照者22例的动态组织多普勒图像后，分别测量其不同心肌节段的最大应变值，对两组结果进行分析比较。结果 正常组应变值在各个心肌节段基本保持一致；而在肥厚型心肌病组，室间隔、左室前壁和下壁各节段心肌的应变值显著低于正常组。结论 应变成像技术可准确地检出肥厚型心肌病患者局部心肌收缩功能的异常，为准确、定量地评价局域心肌功能提供了新的参数。

Evaluation of regional myocardial function in hypertrophic cardiomyopathy patients and healthy persons by strain imaging

Objective To evaluate the regional myocardial systolic function in the patients with hypertrophic cardiomyopathy(HCM) by strain imaging technique.Methods Doppler myocardial imaging of 20 HCM patients(HCM group) and 22 healthy subjects(control group) was collected,and their regional peak systolic strain in the mid and basal segment was measured respectively.The data were compared and analyzed between the two groups.Results In the healthy subjects,the strain value showed no difference between regional myocardium.In the interventricular septum,anterior and inferior wall of left ventricle,the strain value of HCM group was significantly lower than that of control group.Conclusions Strain imaging could detect the abnormal regional myocardial function of HCM patients accurately, and provide a new quantitative parameter for evaluating the regional myocardial functions.