The Diagnosic Value of Preoperative Spiral CT Scanning in Middle-late Stage Rectal Carcinoma
- VernacularTitle:螺旋CT扫描对中晚期直肠癌的诊断价值
- Author:
Qiao SHI
;
Wei WANG
;
Sheng LIU
- Publication Type:Journal Article
- Keywords:
Rectal carcinoma;
Tomography, X-ray computed;
Diagnose;
Staging
- From:
Journal of Chinese Physician
2001;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of preoperative spiral CT (SCT) scanning in the diagnosis and staging of middle-late stage rectal carcinoma. Methods The results of SCT scanning of 34 patients with middle-late stage rectal carcinomas were compared with the pathological examination results and the findings of surgical operation. Results SCT could display the manifestations of middle-late stage rectal carcinoma, such as rectal wall thickening, local tumor mass, tumor invasion of rectal circumference, narrow rectal cava, lymph node enlarging (diameter≥10mm) and tumor distant metastasis. According to Duke's staging, the overall accuracy of SCT staging was 70.6%, and for the stages B1, B2, C, and D the sensitivity was 83.3%, 50%, 66.7%, 78.5%, and the specificity was 62.5%, 44.4%, 57.1%, 100%, respectively. According to TNM staging, the overall accuracy of SCT was 73.5%, and for the stages T2, T3, T4 the sensitivity was 85.7%, 61.5%, 78.6%, and the specificity was 54.5%, 66.7%, 100%, respectively. Conclusion Preoperative SCT could display the invasive range of middle-late stage rectal carcinoma and the tumor lymph nodes metastasis, especially distant metastasis, and had a definite diagnostic value.
