Colorectal carcinoma:preoperative staging with water enema spiral CT
- VernacularTitle:低张水灌肠螺旋CT扫描对大肠癌的术前分期研究
- Author:
Sheng GUAN
;
Jianbo GAO
;
Yintai LI
- Publication Type:Journal Article
- Keywords:
Colorectal neoplasms;
Neoplasm staging;
Pathology;
Tomography,X-ray computed
- From:
Chinese Journal of Radiology
2001;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the value and limitation of water enema spiral CT (WESCT) in staging of colorectal carcinoma.Methods Forty-eight patients with histologically proven rectum or colon carcinoma were included in this study. All of them were examined by SCT ,and the preoperative staging of TNM and Duke were used based on the findings of SCT.The results of WESCT were compared with those of surgical and pathological examination in all cases. Results All lesions in the 47 cases were demonstrated clearly by WESCT and the sensitivity was 97.9% ; 39 cases of 48 patients were correctly staged with TNM and 42 cases with Duke , the accuracy was 81.3% and 87.5% respectively, which were higher than the overall 50 % accuracy reported by references ;⑶The accuracy of WESCT was 89.6% (43/48) in T stage and 81.3% (39/48) in N stage. Three casas in M stage were all diagnosed correctly;Conclusion WESCT scan is a better method of depicting the colorectal carcinoma. It allows for accurate depiction and staging of colorectal carcinoma, especially detecting the invasion of adjacent tissues and distant metastasis. It is the best imaging method for staging the colorectal carcinoma . However the value of WESCT for early T staging in colorectal carcinoma and minute metastasis of lymph nodes or liver is limited.
