全容积三维超声评估冠心病患者左心功能的价值

Application of full-volume three-dimensional ultrasound in evaluation of left heart function of patients with coronary heart disease

目的探讨全容积三维超声心动图评估冠心病患者左心功能的价值。方法分别对50例正常人、50例冠心病患者进行心脏三维超声心动图检查,处理分析采集的三维超声图像,获取左室整体以及17节段容量-时间曲线,比较局部射血分数(REF)、局部心搏量(RSV)、局部收缩末期容量(RESV)、左心室17节段局部舒张末期容量(REDV)。结果冠心病组的RESV、REDV水平显著高于正常组,REF水平显著低于正常组(P <0. 05)。冠心病组术后的RESV、REDV水平显著下降,REF显著升高(P <0. 05)。冠心病组术前各节段REF显著低于正常组(P <0. 05),而术后的REF水平有不同程度升高,且接近正常范围,差异均有统计学意义(P <0. 05)。结论实时全容积三维超声检查可用于准确评估冠心病缺血重构心脏容积以及心功能。

Objective To evaluate the effect of full-volume three-dimensional echocardiography in evaluation of left heart function of patients with coronary heart disease.Methods A total of 50 normal controls and 50 patients with coronary heart disease were enrolled,and underwent three-dimensional echocardiography.The three-dimensional ultrasound images were collected and analyzed.The left ventricle and the 17-segment volume-time curve were obtained.The local ejection fraction(REF),local stroke volume(RSV),local end-systolic volume(RESV),left ventricular 17-segment local end-diastolic volume(REDV)were compared.Results The levels of RESV and REDV in the coronary heart disease group were higher,and the REF level was lower than that in the normal group(P<0.05).The levels of RESV and REDV in the coronary heart disease group were significantly decreased,and the postoperative REF was significantly increased(P<0.05).The preoperative REF of the coronary heart disease group was significantly lower than that of the normal group(P<0.05),and the postoperative REF level was increased to different extents to normal range(P<0.05).Conclusion Full-volume three-dimensional ultrasonography can be used to accurately assess the cardiac volume and cardiac function of ischemic remodeling in coronary heart disease.