脉冲组织多普勒技术对神经症患者二尖瓣环指标的评估

Evaluation of Mitral Annular Indices in Cardiovascular Nuerosis by Pulsed Wave Doppler Tissue Imaging

目的探讨脉冲组织多普勒(PW-DTI)技术对神经症患者二尖瓣环指标的定量评估。方法选择不同年龄段的神经症患者40例,测量心脏6个室壁二尖瓣环PW-DTI指标收缩期峰值速度(Vs)、舒张早期峰值速度(Ve)、舒张晚期峰值速度(Va)、射血前期(PEP)、射血期(ET)。结果心脏6个室壁二尖瓣环Vs、Ve、Va存在统计学差异,而反映收缩时间间期的指标PEP、ET各室壁间无统计学差异;年龄、心率与Ve、Ve/Va呈负相关关系。结论神经症患者心脏6个室壁二尖瓣环存在收缩、舒张速度的异质性和收缩的同步性;年龄、心率均分别与Ve、Ve/Va呈负相关。

Objective To quantitatively evaluate the mitral annular indices in cardiovascular nuerosis by pulsed wave doppler tissue imaging (PW-DTI). Methods The study included 40 Cardiovascular Nuerosises at different age range, and the DTI indices were measured at the 6 mitral annular sites by ultrasonic diagnostic apparatus type HP4500. Results The indices of PW-DTI among 6 walls were different, and showed significant difference in the peak systolic velocity(Vs), early diastolic peak velocity(Ve),late diastolic peak velocity(Va) among some walls, but the systole-related time internal indices among walls were not significant; Vs showed no correlation with age, but significant negative correlation appeared between Ve、Ve/Va and age、 heart rate respectively. Conclusions This study showed that physiological heterogeneity existed in systolic velocities and diastolic velocity and synchrony existed in systolic velocities at the 6 sides of mitral annulus in cardiovascular nuerosis. There were significantly negative correlation between age and heart rate with Ve、Ve/Va.