16排多层螺旋CT结肠成像技术及临床应用

Techniques and Clinical Applications of 16 Multislice Helical CT in Colonic Diseases

目的 评价16排多层螺旋CT结肠成像对大肠疾病的诊断价值。方法 应用16排多层螺旋CT对我院8l例患者(包括结直肠癌54例,腺瘤5例,非何杰金氏淋巴瘤1例,炎性肠病6例,其他15例)进行容积扫描,分别进行多平面重建、表面阴影成像、透亮显示(raysum)图像及CT仿真内窥镜等后处理。结果 CT结肠成像可显示全结肠,观察结肠病变的数量、位置、表面形态、管腔狭窄、肠管周围及远处脏器的情况。结论 多层螺旋CT是一项有价值的影像技术,有助于结肠病变的诊断及治疗方案的制定,是结肠镜的必要补充。

Objective To evaluate the techniques and clinical applications of 16 multislice helical CT in colonic lesions. Methods Eighty-one patients including 54 colorectal carcinomas, 5 adenomas, 1 non-Hodgkin's lymphoma, 6 inflammatory bowel diseases, and other 15 cases underwent volume scanning using 16 multislice helical CT. Four types of reconstruction included multiple planar reconstruction, shaded surface display, raysum, and CT virtual colonoscopy. Results Complete colon could be shown in all patients. The lesions' morphology, number, size, location, intestinal cavity, pericolonic changes, and other abdominal organs were satisfactorily shown by CT. Conclusions Sixteen multislice helical CT colonography is a valuable imaging technique for detecting colonic diseases. It is effective in diagnosis and treatment planning. It can display the portions of colon that is inaccessible at colonoscopy.