应用QTVI技术、TAPSE和MAD对孤立性阵发房颤者心功能的评估研究

目的:探究定量组织速度成像技术（QTVI）、三尖瓣环收缩期位移（tTAPSE）及二尖瓣环收缩期位移（MAD）在孤立性心房颤动患者左、右心室功能评估中的应用意义。方法:入选 67例孤立性、阵发性心房颤动患者作为房颤组，另选取65例健康体检者作为对照组，采用M型超声测量患者左心房前后径（LAD）、左心室收缩末期内径（LVESD）、舒张末期内径（LVEDD），并计算左心室射血分数（LVEF）及MAD、TAPSE值；采用二维超声测量患者右心室面积变化率（RVPCA）；采用多普勒超声测量左、右心室E值；采用QTVI测量左、右心室Vs、Ve值。分析房颤组患者左、右心室的收缩及舒张功能变化。结果:与对照组比较，房颤组患者的左、右心室LVEDD、LVESD和LVEF差异无统计学意义（P>0.05），而左、右心室Vs、Ve、MAD和TAPSE值明显降低，E值及E/ Ve明显升高（P<0.05）。 结论:孤立性阵发性房颤患者的左、右心室功能下降，在传统的心功能指标未能发现异常时，QTVI联合TAPSE和MAD能够早期和快速地反映房颤患者左右心室功能的变化。

Assessment of cardiac function of isolated paroxysmal atrial fibrillation using QTVI technology,TAPSE and MAD

Objective: To explore the significance of quantitative tissue velocity imaging (QTVI) combined with tricuspid annulus systolic displacement (TAPSE) and mitral annulus systolic displacement (MAD) in assessing left and right ventricular functions in patients with isolation atrial fibrillation. Methods: Sixty-seven patients with isolated atrial fibrillation were selected as AF group, and 65 healthy people as control group . Left and right ventricular structure parameters were calculate and the left ventricular ejection fraction (LVEF) were measured; MAD and TAPSE value were measured; E values were measured using Doppler ultrasound; Left ventricular Vs and right ventricular Vs and Ve values were measured by QTVI. Results: There were no statistically significant differences in LVESD, LVEDD, and EF in AF group compared with the control group (P > 0.05). Compared with control group, left ventricular Vs, Ve, MAD, and TAPSE values in AF group significantly decreased, while the E/E value and Ve increased significantly (P < 0.05). Conclusion: Left and right ventricular functions in patients with atrial fibrillation could decline significantly compared with healthy subjects, and the combination of TAPSEQTVI and MAD can assess the function of left and right ventricle accurately and rapidly in patients with atrial fibrillation.