多层螺旋CT血管造影在主动脉缩窄和主动脉弓离断的应用

The application of multi-slice spiral CT angiography in disease of coarctation of the aorta and interrupted aortic arch

摘要: 目的探讨多层螺旋CT血管造影(MSCTA)对主动脉缩窄(COA)和主动脉弓离断(IAA)的诊断价值。方法对临床拟诊COA或IAA的16例患者行16层螺旋CT血管造影扫描,将数据进行容积再现(VR)、多平面重组(MPR)、最大密度投影(MIP)和薄层MIP重组,再以分段诊断法分析心内外结构。结果通过MSCTA三维重组图像分析发现,主动脉及心腔内其他畸形27处,其中COA患者5例、IAA患者4例。结论 MSCTA在先天性心脏病心外大血管畸形诊断中具有明显优势,在很大程度上能够替代心血管造影检查。

Abstract: Objective To investigate the diagnostic value of multi-slice spiral CT angiography in coarctation of the aorta(COA) and interrupted aortic arch (IAA). Methods Sixteen patients with suspected COA or IAA were imaged on 16-slice spiral CT angiography. The images were reconstructed with volume rendering, multi-planar reformation, maximum intensity projection, thin-slice MIP. Intracardiac and extracardiac structure was analyzed. Results After the 3D image analysis of MSCTA, 5 cases were found with COA, 4 cases were found with IAA and 27 other aortic and intracardiac deformities were found. Conclusion MSCTA has obvious advantages in diagnosing congenital heart disease with extracardiac large vascular malformation and can considerably substitute for cardiovascular angiography.