摘要
目的:探讨彩色多普勒超声心动图诊断房颤患者左室舒张功能障碍的价值。材料和方法:心脏病患者24例(孤立性房颤8例,高血压性心脏病合并房颤7例,扩张性心肌病合并房颤9例),对照组30例。取心尖四腔观,将多普勒取样容积置于二尖瓣口以及距二尖瓣口1、2、3cm处,测量二尖瓣血流E峰流速,计算舒张早期血流播散的速度。结果:对照组左室舒张早期血流速度保持不变。各种心脏病患者左室舒张早期血流速度随传播距离加大而递减。结论:左室舒张早期血流的传播速度,是评价房颤及二尖瓣血流频谱假性正常化者左室舒张功能障碍的方法。
Purpose: To evaluate the left ventricular(LV) diastolic dysfunction in patients with atrial fibrillation(AF) using Color Doppler flow imaging.Materials and Methods: Twenty-four patients with cardiac diseases(8 simple AF,7 AF with hypertension,and 9 cardiomyopathy)and 30 normal volunteers underwent echocardiography.The diastolic flow velocity at 1、2、or 3cm from mitral tip toward the apex were recorded.Results: In the normal control subjects,early diastolic flow velocity was stable while in patients with heart diseases the peak velocity of early diastolic flow decreased gradually as it apart from the mitral valve.Conclusion: The assessment of intraventricular dispersion in peak velocity of early diastolic flow may be of value in detecting left ventricular diastolic dysfunction.
出处
《中国医学影像学杂志》
CSCD
2005年第6期15-17,共3页
Chinese Journal of Medical Imaging
关键词
超声心动图
心房颤动
左室功能
echocardiography
diastolic dysfunction
atrial fibrillation
