摘要
目的评价64层螺旋CT多种后处理技术对复杂型先天性心脏病(complex congenital heart disease,CCHD)的诊断价值。资料与方法20例CCHD患者原始多层螺旋CT(MSCT)对比增强图像,根据不同心率采用不同扇区重组方法,获取最满意的图像,并将原始图像在工作站行多平面重组(MPR)、最大密度投影(MIP)、容积再现(VR)重组。比较分析多种影像后处理技术对CCHD的检测和诊断价值。结果手术或多种影像学方法(血管造影或者心脏超声)检查证实心脏畸形共70处,其中心脏部分畸形为27处,MPR、MIP、VR的诊断准确率分别为96.3%、81.5%、3.7%,3种技术对心脏部分畸形的诊断准确率差异具有统计学意义(χ2=55.8941,P<0.05)。心脏与大血管连接部分畸形共计25处,VR、MIP、MPR的诊断准确率分别为36.0%、96.0%、92.0%,3种技术对心脏与大血管连接部分畸形的诊断准确率差异具有统计学意义(χ2=29.7462,P<0.05);心脏大血管部分畸形18处,VR、MPR、MIP的诊断准确率分别为94.4%、83.3%、83.3%。结论64层螺旋CT多种后处理技术联合应用能直观地显示心脏病理解剖结构,可为临床术前评估和术式选择提供影像学信息。
Objective To evaluate the value of reconstruction techniques of 64 MSCT in diagnosing the complex congenital heart disease （CCHD）. Materials and Methods 20 patients were examined with enchanced 64 multi-slice CT. Based on the heart rate, we used the different sector scan technique to get optimistic reconstruct image in the post-processing workstation. Three-dimensional reconstruction techniques included muhi-planar reformation （MPR） ,maximum intensity projection（MIP） ,volume rendering（VR）. Analysis and comparison were made to evaluate the value of different reconstructive techniques in detection and diagnosis of CCHD. Results 20 cases with 70 deformations were confirmed by operation or multi-imaging techniques, including echocardiograms （US） and cineangicardiograms （CAG）. There were 27 intracardiac deformities. The diagnostic accuracy of MPR, MIP, VR were 96.3%, 81.5% and 3.7% respectively. The diagnostic accuracy of MPR, MIP and VR had statistic difference in the intracardiac deformities （χ^2 = 55. 8941, P 〈 0. 05 ）. There were 25 deformities in cardiac-vascular connection. The diagnosis accuracy of MPR, MIP, VR were 36.0, % 96.0% and 92.0% respectively. The diagnosis accuracy of MPR, MIP and VR had statistic difference in the deformities of cardiac-vascular connection（χ^2 = 29. 7462 ,P 〈 0. 05 ）. There were 18 deformities in large cardiac vascular. The diagnosis accuracy of VR, MPR and MIP were 94.4%, 83.3% and 83.3% respectively. Conclusion The reconstructions techniques of 64-MSCT can display the pathologic anatomy of CCHD. Combination with these techniques could provide the imaging information for preperative evaluation and treatment approaching.
出处
《临床放射学杂志》
CSCD
北大核心
2009年第6期786-790,共5页
Journal of Clinical Radiology
