256层多排探测器螺旋CT在儿童复杂先心病中的临床应用研究

摘要

Objective: To explore the clinical value of the 256-slice multi-detector computed tomography in the diagnosis of complex congenital heart disease in children. Methods: Datas of 69 patients under 14 years old with complex congenital heart disease, who underwent both computed tomography angiography(CTA) and transthoracic echocardiography(TTE) as preoper-ative examinations in our hospital from August 2009 to May 2011 were collected. All the patients were proved by operation. Results: As to cardiac abnormalities, the diagnostic accuracy rates of CT and TTE were 91.3% and 98.8% respectively, but the difference was not statistically significant(P=0.07). As to malformations of atrial ventricular great vessals connection, the diagnostic accuracy rates of CT and TTE were 95.7% and 97.8% respectively, but the difference was not statistically significant (P=1.0). As to large extracardiovascular malformation, the diagnostic accuracy rates of CT and TTE were 97.3% and 84% respectively, and the difference was statistically significant (P=0.012). Conclusion: The diagnostic accuracy rate of the 256-slice CT in the diagnosis of complex congenital heart disease is high, especially in the diagnosis of large extracardiovascular malformation, with an accuracy rate of 97.3%, better than TTE.%目的:探讨256层多排探测器螺旋CT(256层CT)在儿童复杂先天性心脏病(CCDH)中的临床应用研究.方法:回顾性分析2009年8月-2011年5月在我院行256层CT心脏血管成像(CTA)和经胸部超声心动图(TTE)检查的69例14岁以下CCDH患儿的临床资料,所有患儿均经手术证实.CTA、TTE结果与手术结果对照,比较256层CT与TTE的诊断优势.结果:256层CT与TTE诊断心脏部分畸形的检出率分别为91.3％和98.8％,差异无显著统计学意义(P=0.07)；256层CT与TTE诊断心脏大血管连接部畸形的检出率分别为95.7％和97.8％,差异无显著统计学意义(P=1.0);256层CT与TTE诊断心外大血管畸形的检出率分别为97.3％和84.0％,差异有显著统计学意义(P=0.012).结论:256层CT在CCDH的诊断中检出率很高,尤其是在心外大血管畸形的诊断中,其检出率优于TTE.