螺旋CT结肠成像对结直肠肿瘤性病变的诊断价值

目的评价螺旋CT结肠成像对结直肠肿瘤性病变的诊断价值.方法 51例患者行结肠充气螺旋CT扫描,利用工作站获得多平面重建(MPR)、三维表面遮盖(3D)及CT仿真结肠镜(CTVC)图像.将CT结果与结肠镜及手术病理进行对照.结果 46例经手术和/或结肠镜证实,其中癌41例,其他5例.螺旋CT对结直肠癌病人的检出率为95.12%(39/41),病灶的检出率为93.02%(40/43).结论螺旋CT结肠成像是结直肠肿瘤性病变的有效检查方法,是结肠镜的必要补充.

Clinical value of spiral CT colonography in diagnosing colorectal neoplasms

Objective To evaluate the value of spiral CT colonography in diagnosing colorectal neoplasms. Methods Fifty-one patients suspected colorectal neoplasms underwent spiral CT scans after bowel cleansing and rectal air insufflation. The CT data was transmitted to the workstation and multiplanar reconstruction (MPR), three dimensional reconstruction (3D) and CT virtual colonoscopy (CTVC) were performed respectively. Thirty-two patients underwent double contrast barium enema (DCBE) and 43 patients underwent colonoscopy simultaneously. Accuracy of tumor detection and CT findings were evaluated, and compared with DCBE, colonoscopy and pathology. Results Five cases were normal, the other 46 cases were proved by the surgical or the colonoscopy biopsy, including colorectal carcinoma ( n =41) and benign diseases ( n =5). CT detected 39 in 41 patients (95.12%) with colorectal carcinoma, and detected 40 in 43 masses (93.02%). The 3D and CTVC findings accorded with the DCBE and colonoscopy, respectively. Conclusion Spiral CT colonography is a promising modality in detecting colorectal mass lesions.