Methods The early and late diastolic peak velocity of the mitral annulus(Em and Am)and the ratio(Em/Am)were measured by Doppler tissue imaging(DTI)and compared before and after 3 months treatment with oral valsartan.

• 方法应用多普勒组织成像(DTI)技术测定二尖瓣环舒张早、晚期峰值运动速度(Em和Am)及其比值(Em/Am),比较向心性重构型原发性高血压左室整体舒张功能减退患者口服缬沙坦3个月前后Em、Am以及Em/Am的变化。