关键词: 高血压, 超声检查, 心室功能, 左, 超声检查, 多普勒, 彩色

Abstract: Objective To explore the clinical values of strain rate imaging (SRI) in detection of regional function of left ventricular in patients with hypertension. Methods Twenty-two healthy volunteers and 30 patients with hypertension were examined with SRI. Strain rates of left ventricular segments along axis were analyzed by strain curves, and the peak SR at systole, isovolumic relaxation phase, early diastole and atrial contraction were calculated. Results Compared with the healthy subjects, patients with hypertension had appreciably lower SR on all walls in systole (P<0.05), except the basal of the lateral ones. SR decreased on all walls in isovolumic relaxation phase (P<0.05), except the basal and middle of the post septum and the basal of the lateral ones. SR decreased on all walls in early diastole (P<0.05),except the basal of the lateral ones, while the peak SR at atrial contraction showed no significant differences in patients with hypertension. Conclusion SRI allows sensitive distinguishing between abnormal and normal regional diastolic function of left ventricular, therefore provides a new method for accurate evaluation of regional diastolic function of left ventricular. strain rate,hypertension/ultrasonography, ventricular function;left, ultrasonography;doppler;color

Key words: hypertension, ultrasonography, ventricular function, left, ultrasonography, doppler, color