多层螺旋CT结肠病变的诊断

Diagnosing colonic diseases using multislice CT

目的评价多层螺旋CT结肠成像技术的临床应用价值。方法回顾性分析我院收治的经手术或结肠镜活检病理证实的20例结肠病变患者的影像学资料。16排MSCT对20例患者进行容积扫描和MPR、CTVC、SSD、Raysum等图像后处理。结果20例中12例结肠癌、1例非霍奇金淋巴瘤、1例残胃癌累及横结肠,CT横断面、MPR、SSD、CTVC、Raysum图像均清晰显示。结肠息肉4例(共12枚),CT横断面显示7枚较大息肉,MPR、SSD、Raysum图像各显示10枚,CTVC清晰显示12枚。3例结肠炎症由CT横断面图像,结合MPR、CTVC而诊断。结论在MSCT结肠成像检查时合理应用后处理技术,有助于结肠病变的诊断。

Objective To evaluate 16-slice spiral CT in diagnosing colonic lesions.Methods Image data from 20 patients who were confirmed as certain colonic lesions by surgery or colonoscopy were retrospectively reviewed.The image data collected by 16-slice MSCT underwent some post-scanning procedures such as multiplanar reconstruc-tion(MPR),CT virtual colonoscopy(CTVC),shaded surface display(SSD)and Raysum.Results For 20 patients,CT transections,MPR,CTVC,SSD and Raysum success-fully detected 12 cases of colonic carcinoma,1 case of non-Hodgkin's lymphoma and 1 case of residual stomach cancer infiltrating colon transversum.Of 12 colonic polyps(in 4 cases),CT transections displayed 7 bigger polyps,MRP,SSD and Raysum showed 10 polyps,CTVC showed 12 polyps.3 cases of colitis were diagnosed by a combined use of CT transaction,MPR and CTVC.Conclusion An appropriate use of post-scanning procedures helps to diagnose colonic diseases.