64层螺旋CT测定左心室射血分数的临床应用价值

Clinical assessment of left ventricular ejection fraction with 64-slice spiral computed tomography

目的探讨多层螺旋CT(MSCT)和平衡法心血池显像(GBPI)测定左心室射血分数(LVEF)的相关性,评价MSCT测定LVEF的准确性。方法临床疑诊冠心病患者47例,男36例,女11例,临床主要表现为胸闷、心悸,部分有心前区疼痛症状,全部病例均行心脏MSCT和GBPI检查。结果MSCT和GBPI两种方法的LVEF无显著性差异,两种方法的LVEF相关性良好,MSCT测得的LVEF值偏大。结论MSCT测定左心室LVEF准确、可靠,与GBPI测得的LVEF值相关性高。

Objective To explore the correlation of 64-slice multislice computed tomography （MSCT）and gated blood pool imaging （GBPI） for determining left ventricular ejection fraction （ LVEF）, and to investigate the accuracy of MSCT for LVEF. Methods Forty- seven patients with suspected coronary artery diseases were performed CT coronary angiography and GBPI. Results There was no sig- nificant difference in LVEF between two methods, and MSCT and GBPI were highly correlated. LVEF was overestimated with MSCT compared with GBPI. Conclusion MSCT is accurate and dependable for evaluating the LVEF, and the LVEF has a high correlation with the result by GBPI.