小儿复杂先天性心脏病64层螺旋计算机断层摄影术成像技术探讨  

64-Multislice Spiral Computed Tomography Imaging on Exploration of Complex Congenital Heart Diseases in Pediatric Patients

作　　者：陈险峰 熊青峰 马兵毅 孙庆军 江帆 张雪莲 彭志远 

机构地区：[1]武汉市亚洲心脏病医院放射科,湖北省430022

出　　处：《中国循环杂志》2009年第4期285-288,共4页Chinese Circulation Journal

摘　　要：目的:探讨64层螺旋计算机断层摄影术(64-MSCT)在小儿复杂先天性心脏病(先心病)中的成像技术。方法:对我院2007-07至2007-10连续经64-MSCT检查并经手术证实的复杂先心病患儿64例进行回顾性对照研究,其中男性48例,女性16例,年龄2个月～6岁(平均2.5岁)。随机依照检查方法将其分为两组,扫描使用非心电门控方式组(no-ECG组),扫描使用心电门控方式组(ECG组),每组32例;比较两组间应用64-MSCT对复杂先心病的显示能力。结果:64例均经手术证实,其中:ECG组确诊29例,误漏诊3例,诊断符合率为90.6%(29/32)。no-ECG组确诊20例,误漏诊12例,诊断符合率为62.5%(20/32)。两组的诊断符合率、准确率比较差异有统计学意义(P<0.01)。两组扫描方式的有效照射剂量分别为2.23 mSv和2.55 mSv,差异无统计学意义(t=1.220,P>0.05)。结论:64-MSCT的心电门控技术对小儿复杂先心病的诊断准确率高于非心电门控技术;两组扫描方式的有效照射剂量差异无统计学意义。Objective：To evaluate 64-muhislice spiral computed tomography （64-MSCT） imaging on exploration of complex congenital heart disease in pediatric patients. Methods ：A total of 64 patients（48 male and 16 female with the mean age of 2. 5 ±0. 4 years） examined from July to October 2007 in our hospital were randomly divided into two groups by electrocardiographic-gating（ECG-gating） or no-electrocardiograpnic-gating（no-ECG-gating） modes and scanned with 64-MSCT. The diagnostic accuracy and exposure dose were compared between two groups retrospectively. Results ： All patients＇ diagnosis was confirmed by the operation. The diagnostic accuracy of 64-MSCT imaging with ECG-gating and no-ECG-gating technique in detection of complex congenital malfoemations were 90. 6% and 62. 5% respectively（ P 〈 0. 01 ） , the difference was significant. However, the exposure doses between two groups were not significant（ P 〉 0. 05 ）. Conclusion：For pediatric patients with complex congenital heart disease scanned by 64-MSCT, ECG-gaiting technique was superior to no-ECG gaiting technique. There was no statistic difference of exposure doses between two scanner modes.

关 键 词：先天性心脏病 血管造影术 心电门控技术 X线计算机断层 

分 类 号：R541[医药卫生—心血管疾病]