摘要
目的:探讨16层螺旋CT及后处理技术对大肠病变的诊断价值。方法:回顾性分析经手术和/或纤维肠镜活检病理证实的63例大肠病变的16层螺旋CT及后处理影像资料。结果:63例大肠病变中结直肠癌44例;息肉6例;血吸虫病肉芽肿7例,其中3例恶变;内分泌癌1例;脂肪瘤2例;阑尾黏液囊肿2例及黏液性囊腺瘤1例。63例的多平面重组(MPR)、表面遮盖显示(SSD)、仿真内镜(VE)、结肠平铺显示(PE)及透明化显示(Raysum)等后处理技术的诊断符合率分别为98.4%、68.3%、85.7%、85.7%及71.4%,MPR分别与SSD、VE、PE及Raysum之间比较差异具有统计学意义(数值分别为χ2=2.019,P<0.05;χ2=1.518,P<0.05;χ2=1.518,P<0.05;χ2=1.699,P<0.05)。结论:16层螺旋CT及后处理技术对大肠病变具有较高诊断价值,MPR显示病灶更佳,检出率更高,是纤维肠镜重要的补充检查手段,而各种后处理技术在诊断中应用价值各异,应相互结合。
Objective：To assess the value of 16-slice spiral CT and the post-processing techniques in the diagnosis of large intestine lesions. Methods：The 16-slice spiral CT and post-processed imaging materials of 63 patients with surgery and/or fibro-colonscopy proved large intestine lesions were retrospectively analyzed.Results：Of the 63 patients,there were colon-rectal cancer （44 patients）,polyp （6 patients）,schistosoma granuloma （7 patients,3 proved to have malignant transformation）,endocrinal carcinoma （1 patient）,lipoma （2 patients）,appendiceal mucocele （2 patients） and appendiceal mucinous cystadenoma （1 patient）.The diagnostic accuracy of post-processing techniques including multiplanar reconstruction （MPR）,maximum intensity projection （MIP）,shaded surface display （SSD）,virtual colonoscopy （VE）,panoramic endoscopy （PE） and Raysum was 98.4%,68.3%,85.7%,85.7% and 71.4%,respectively.There were significant statistical differences between MPR and SSD,VE,PE,Raysum （χ2=2.019,P0.05;χ2=1.518,P0.05;χ2=1.518,P0.05;χ2=1.699,P0.05 respectively）.Conclusion：16-slice spiral CT with post-processing techniques has significant diagnosis value for large intestine lesions.MPR showed a better lesion detection rate,which is an important supplementary means for fibrocolonscopy.However,various post-processing technology has different diagnostic value and should be used in combination.
出处
《放射学实践》
北大核心
2010年第9期1030-1033,共4页
Radiologic Practice
关键词
大肠
图像处理
计算机辅助
体层摄影术
X线计算机
Intestine
large
Image processing
computer-assisted
Tomography
X-ray computed
