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速度向量成像技术对左室舒张功能的评价

朱秀玲1,马琳1,张树华2,谢芳1,刘洋1,孟君3   

  1. 1. 唐山华北煤炭医学院附属医院
    2. 唐山市华北煤炭医学院附属医院超声科
    3. 杭州市红十字会医院特检科
  • 收稿日期:2010-03-30 修回日期:2010-09-12 出版日期:2011-01-15 发布日期:2011-01-15
  • 通讯作者: 朱秀玲

The evaluation of left ventricular diastolic function by Velocity Vector Imaging

  • Received:2010-03-30 Revised:2010-09-12 Published:2011-01-15 Online:2011-01-15

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摘要： 【摘要】 目的 探讨速度向量成像（VVI）技术评价左室舒张功能的可行性。材料与方法 选取左室舒张功能减低患者61例和正常对照40例，应用VVI技术测定二尖瓣环前壁、下壁、侧壁、间隔4个位点的舒张早期、晚期运动速度（Ve、Va）及其比值（Ve/Va）、舒张早期、晚期应变率(SRe、SRa)及其比值(SRe/SRa)，并计算各位点的平均值。结果 左室舒张功能减低组二尖瓣环各位点Ve、SRe、Ve/Va、SRe/SRa均低于对照组, Va、SRa均高于对照组（P<0.001）。结论 速度向量成像技术可用于二尖瓣环运动的定量分析，可作为评价左室舒张功能的一种新方法。

关键词: 超声心动描记术, 多普勒, 彩色, 心室功能, 左 二尖瓣, 心舒期#心缩期#速度向量成像

Abstract: 【Abstract】 Purpose To explore the feasibility of Velocity Vector Imaging（VVI） in evaluation of left ventricular diastolic function. Methods Choosed 61 patients of left ventricular diastolic dysfunction and 40 subjects as the normal control group, every patient were examined by VVI work station. 4 mitral annular sites: anterior and inferior from apical 2-chamber views，lateral and septal from apical 4-chamber views were adopted. The early and late diastolic velocity (Ve, Va), the early and late diastolic strain rate (SRe, SRa) were measured, the Ve/Va, SRe/SRa ratio and the mean value of 4 sites were calculated. Results The Ve, SRe, Ve/Va , SRe/SRa of the patients with diastolic dysfunction were significantly decreased compared with the control group in every mitral annular site and Va, SRa were significantly increased（P<0.001）. Conclusion The motion of mitral annular could be measured quantitily by VVI and VVI could be used to evaluate the left ventricular diastolic function as a new method.

Key words: echocardiography, doppler, color, ventricular function, left mitral valve, diastove#systole# veocity vector imaging