Clinical Study on the Staging of Colorectal Carcinoma using Fat-dense Contrast Medium and Enhanced Multislice Spiral CT
- VernacularTitle:脂肪对比剂灌肠多层螺旋CT对大肠癌分期的临床分析
- Author:
Hui ZHOU
;
Baohua HU
;
Min RAO
- Publication Type:Journal Article
- Keywords:
contrast agent;
neoplasm staging;
colorectal neoplasm;
tomography,X-ray computed
- From:
Journal of Practical Radiology
2001;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the value of enhanced multislice spiral CT (MSCT) scan using fat-dense enema for the staging of colorectal carcinoma.Methods 33 cases with colorectal carcinoma confirmed by colonoscopy were examined by enhanced MSCT scan ,from the dome of the diaphragm to symphysis pubica,after bowel cleaning,administration of smooth muscle relaxant, and rectal fat-dense contrast agent insuffation .Carcinomas were staged with TNM by axial,multiplannar reconstruction(MPR) and CT virtual endoscopy (CTVE) images. The staging results on CT were compared with that of postoperative pathological examination in all cases.Results All the 33 colorectal carcinoma were demonstrated clearly by MSCT ,the total accurate rate in staging with the TNM classification was 78.78%.The sensitivity and positive accurate values for T staging were 100%and 87.88%(29/33),respectively. The sensitivity and positive accurate values for in detecting lymph node involvement were 86.36%(19/22)and 68.18%(15/22), respectively. Five cases in M stage were all diagnosed correctly. Conclusion Using fat-dense contrast medium and enhanced multislice spiral CT is of very important value in staging of colorectal carcinoma.
