Clinical Application of 64-slice Spiral CT Colonography
- VernacularTitle:64层螺旋CT结肠成像技术的临床应用研究
- Author:
Xingwang WU
;
Bin LIU
;
Hong ZHAO
;
Yongqiang YU
- Publication Type:Journal Article
- Keywords:
tomography ,X-ray computed;
colonic lesions;
colonography;
virtual colonoscopy
- From:
Journal of Practical Radiology
2001;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the techniques and application of 64-slice helical CT colonography in colonic lesions. Methods Thirty-eight patients (including 12 colonic carcinomas,10 polypi, 9 colon multiple scrobiculus, 2 multiple diverticula, 2 negative, 1 congenital bowel malrotaion,1 ulcerative colitis and tunica mucosa glandular organ hyperplasy,1 colocolic anastomosis of terminal ileum and sigmoid colon) underwent volume scanning using 64-slice helical CT after cleaning colon. Six types of reconstruction including CT virtual colonoscopy(CTVC), volume rendering(VR), multiple planar reconstruction(MPR), 360?sectional view, RaySum,and navigation were gained.CTVC appearances were compared with that of conventional colonoscopy(CC).Results In 12 colonic carcinomas and 10 polypi,the lesions’ morphology,number,size, were satisfactorily shown by CTVC. The lesions’ location,range,and 1 intestinal canal obviously stenosis were also exactly shown by RaySum.The relationship between tumor and environment, 3 liver or retroperitoneal lymph node metastasis were satisfactorily shown by MPR and 2D transection image. On 360?sectional view,the distance between tumor and anus was exactly measured and the result was in conformity to that of CC. Of the CTVC appearances,1 sigmoid carcinoma and 1 transverse colon polyp was in unconformity to that of CC;1 ulcerative colitis and descending colon carcinoma was diagnosed as ulcerative colitis and tunica mucosa glandular organ hyperplasy by pathology.Conclusion 64-slice helical CT is a valuable imaging technique for detecting colon diseases. CTVC can obtain more clinical information than CC combining MPR,RaySum and VR.
