论文部分内容阅读
目的采用组织多普勒成像(DTI)技术对高血压心脏病患者的左心室功能变化进行评价。方法 75例高血压心脏病患者作为高血压心脏病组,20例健康体检者作为健康对照组,采用DTI技术及多普勒血流频谱测量舒张早期充盈峰(E)及舒张晚期充盈峰(A)、舒张早期运动速度(Ea)及舒张晚期运动速度(Aa),并进行组间对照研究。结果高血压心脏病组Ea(7.90±2.50)cm/s、Aa(9.30±2.60)cm/s及Ea/Aa值(0.84±0.05)均低于健康对照组(14.80±5.30)cm/s、(12.50±2.30)cm/s、(1.18±0.34),差异均具有统计学意义(P<0.05)。高血压心脏病组E(64.90±19.71)cm/s、A(75.03±18.42)cm/s及E/A值(0.91±0.21)均低于健康对照组(89.33±18.86)cm/s、(87.65±22.80)cm/s、(1.19±0.14),差异均具有统计学意义(P<0.05)。结论 DTI技术结合多普勒血流频谱测定可更为有效的对高血压心脏病左心室舒张功能进行评价。
Objective To evaluate the changes of left ventricular function in patients with hypertensive heart disease by tissue Doppler imaging (DTI). Methods 75 patients with hypertensive heart disease were enrolled as hypertensive heart disease group and 20 healthy subjects as healthy control group. DTI and Doppler flow were used to measure the peak of early diastolic filling (E) and late diastolic filling (A ), Early diastolic velocity (Ea) and late diastolic velocity (Aa) were measured and compared between groups. Results Ea (7.90 ± 2.50) cm / s, Aa (9.30 ± 2.60) cm / s and Ea / Aa in hypertension group were significantly lower than those in healthy control group (14.80 ± 5.30) cm / s, (12.50 ± 2.30) cm / s and (1.18 ± 0.34) respectively, the differences were statistically significant (P <0.05). The levels of E (64.90 ± 19.71) cm / s, A (75.03 ± 18.42) cm / s and E / A in hypertensive heart disease group were significantly lower than those in healthy controls (89.33 ± 18.86) cm / 87.65 ± 22.80) cm / s and (1.19 ± 0.14) respectively, with significant difference (P <0.05). Conclusions DTI technique combined with Doppler flow spectrum can be more effective in evaluating left ventricular diastolic function in patients with hypertensive heart disease.