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目的:评价先天性心脏病(CHD)不同病变类型在64层螺旋CT(64-MDCT)三维重建图像上的表现及显示效果。方法:回顾性分析36例CHD患者的64-MDCT资料,分别在轴位、冠状、矢状位及容积再现(VR)重组图像上观察病变,统计分析不同重组图像显示总体病变及房、室间隔缺损效果有无差异。结果:36例患者共有病变59处,轴位、冠状及矢状位图像在发现病变(59处,100.0%;57处,96.6%;53处,89.8%)及室间隔缺损显示(显示效果评分:41、38及39分)方面无明显差异(P>0.05),但轴位图像显示房间隔缺损明显优于冠、矢状位图像(显示效果评分:19、13及12分)(P<0.05)。VR图像与轴位及冠、矢状位图像显示心外大血管病变效果无差异(P>0.05)。不同类型病变在轴位,冠、矢状位及VR图像上表现特征不尽相同,而不同重组图像有各自优势显示的病变类型。结论:64-MDCT三维重建图像能够很好地显示先心病各种类型病变,了解不同重建图像上病变表现特征及显示效果有利于做出准确、全面的诊断。
PURPOSE: To evaluate the performance of different types of lesions in congenital heart disease (CHD) on 64-slice spiral CT (64-MDCT) three-dimensional reconstruction images. Methods: The data of 64-MDCT in 36 CHD patients were retrospectively analyzed. The lesions were observed in axial, coronal, sagittal and volumetric reconstructed (VR) images respectively. Statistical analysis of the total lesions, atrial and ventricular septum Is there any difference in the effect of the defect? Results: A total of 59 lesions were found in 36 patients. Axial, coronal and sagittal images were detected in lesions (59 sites, 100.0%; 57 sites, 96.6%; 53 sites, 89.8%) and ventricular septal defect : 41, 38 and 39) (P> 0.05). However, axial images showed atrial septal defects were significantly better than those of the coronal and sagittal images (19, 13 and 12 scores) (P < 0.05). VR images and axial and coronal and sagittal images showed no significant difference in extrahepatic macrovascular disease (P> 0.05). Different types of lesions in the axial, coronal, sagittal and VR images show different characteristics, and different recombinant images have their own advantages of the type of lesions. Conclusion: 64-MDCT three-dimensional reconstruction of images can be a good display of all types of congenital heart disease, understanding of different reconstruction images on the performance characteristics and display is conducive to make accurate and comprehensive diagnosis.