[摘要] 目的 探讨多普勒组织成像在高血压患者二尖瓣环运动对左室收缩功能的作用。方法 以多普勒组织成像(DTI)技术检测心尖四腔心切面二尖瓣前叶瓣环与后叶瓣环的收缩运动速度S1、S2，比较正常人与高血压病患者心功能Ⅰ级、Ⅱ级、Ⅲ~Ⅳ级间的差别，以及高血压病患者不同EF间S1、S2的差别，并计算EF与S1、S2的相关性。同时比较各组中S1与S2之间的差别。结果 正常人与高血压病心功能Ⅰ级组间，S1、S2无差别，高血压病心功能Ⅰ级组与Ⅱ级组间亦无差别，但心功能Ⅱ级组较正常人降低，Ⅲ~Ⅳ级组较Ⅰ级组、Ⅱ级组更低。依EF不同分组后，EF越高，S1、S2越高，两者呈正相关关系，r分别为0.52，0.56，P<0.001。各组中S1、S2之间未见明显差别。结论 DTI技术检测二尖瓣环运动速度可以反映左心收缩功能的改变。对于没有节段性运动异常的患者，前叶瓣环、后叶瓣环都可以作为左心室收缩功能的代表，是一种无创检测左心收缩功能的方法。

    [关键词] 多普勒组织成像；二尖瓣环；高血压患者

    Observation on mitral annular movement with Doppler tissue imaging in hypertensive patients

    HAN Yong.Xiaoshan Second People’s Hospital,Hangzhou 311241,China

    [Abstract] Objective To find an effect that left ventricular systolic function in hypertensive patients by mitral annular movement with Doppler tissue imaging.Methods Anterior and posterior mitral annular velocity(S1,S2) in systole from apex four chamber view were measured by Doppler tissue imaging(DTI).S1,S2 in healthy patterns were compared with patients with hypertension in different NYHA.We also compared S1 and S2 in different EF and analysis relative coefficient between EF and S1,S2.Results There is no difference in S1,S2 between normal patterns and hypertensive patients in NYHA Ⅰ,hypertensive patients in NYHA Ⅰ and Ⅱ.That of patients in NYHA Ⅱ were lower than normal patterns,in NYHA Ⅲ~Ⅳ were lower than both in NYHA Ⅰ and Ⅱ.Grouped with different EF,patterns were found S1 and S2 changed with EF positively(r=0.52,0.56 respectively,P<0.001).In all groups,no difference were found between S1 and S2.Conclusion Detection of mitral annular velocity with DTI can reflect the change of left ventricular systolic function.To patients without abnormal regional wall motion,either S1 or S2 can represent left ventricular systolic function.It is a method for assessment of left ventricular function. ......