Diagnostic value of 64-slice spiral CT colonography in TN staging of colorectal carcinomas

VernacularTitle:64排螺旋CT结肠成像评价结直肠癌术前TN分期
Author: Yuan LIU ; Chunwu ZHOU ; Hongmei ZHANG ; Liming JIANG ; Jun JIANG ; Shuang WANG ; Xiaohong MA
Publication Type:Journal Article
Keywords: Colorectal neoplasms; Tomography; spiral computed; Neoplasm staging
From: Chinese Journal of Medical Imaging Technology 2009;25(12):2147-2149
CountryChina
Language:Chinese
Abstract: Objective To assess the value of 64-slice CT colonography (CTC) in preoperative TN staging of colorectal carcinomas. Methods One hundred and sixty-eight patients with suspected colorectal neoplasm underwent 64-slice spiral CTC after bowel cleaning and rectal air insufflating, among them 91 patients were proved with surgical pathology and enrolled into this study, and CTC images were reviewed separately by two experienced radiologists for preoperative TN staging of the tumors. Results For CTC evaluation of T staging, the sensitivity, specificity and accuracy were 98.57% (69/70), 85.00% (17/20) and 92.31% (84/91), respectively. The sensitivity, specificity and accuracy of CTC N staging were 87.80% (36/41), 96.00% (48/50) and 82.42% (75/91), respectively. Conclusion 64-slice spiral CTC plays a significant role in the preoperative TN staging of colorectal carcinoma.