斑点追踪显像技术评价生理性和病理性左室心肌肥厚的左心室功能(1)
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[摘要] 目的 应用二维斑点追踪显像(2DSTI)技术评价生理性和病理性左心室心肌肥厚的左心室功能。 方法 高心组(50例)，运动员组(25例)和对照组(25例)。应用STI技术测定左心室各壁基底段、中间段和心尖段收缩期峰值应变(Ss)和收缩期峰值应变率(SRs)，并对结果进行分析。 结果 与对照组和运动员组比较，高心组Ss和SRs均显著降低(均P < 0.05)，对照组和运动员组比较无显著性差异(P > 0.05)。 结论 STI技术可实时、准确地反映心肌收缩功能状况，并可对生理性肥厚心肌和高血压左心室肥厚进行鉴别。
[关键词] 二维斑点追踪；高血压；心肌肥厚；长轴应变；运动员心脏
[中图分类号] R540.45 [文献标识码] B [文章编号] 1673-7210(2012)08(b)-0102-03
Evaluationg of left ventricular function in physiological and pathological left ventricular myocardial hypertrophy by Speckle tracking imaging
TAN Wei1 DING Yan2 WANG Zhibin3▲ SUN Pin3 LE Jiafang1
1.Department of Ultrasound, Qingdao Municipal Hospital Affiliated to Medical College of Qingdao University, Shandong Province, Qingdao 266000, China; 2.Department of Ultrasound, Maternity and Child Health Care Institute of the North District in Qingdao, Shandong Province, Qingdao 266000, China; 3.Department of Cardiac Ultrasound, Affiliated Hospital of Medical College of Qingdao University, Shandong Province, Qingdao 266003, China
[Abstract] Objective To evaluate the left ventricular function of pathologic and physiologic left ventricular hypertrophy using two-dimensional speckle tracking imaging. Methods 50 cases of hypertension heart group, 25 cases of athlete group and 25 cases of the control group were selected, systolic peak strain (Ss), systolic peak strain rate (SRs) were measured at basal, middle and apical segments, and the results were analyzed. Results The Ss and SRs in hypertension heart group were all significantly lower than those of control group and athlete group (all P < 0.05). The difference of Ss and SRs between athlete group and control group was not statistically significant (P > 0 ......
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