Oral contrast-enhanced spiral CT cholangiography: feasibility of the technique
- VernacularTitle:口服法螺旋CT胆管成像术的可行性研究
- Author:
Daiquan ZHOU
;
Chuan LI
;
Jian WANG
;
Beihai WU
;
Jie CHEN
- Publication Type:Journal Article
- Keywords:
cholangiography;
3D reconstruction;
spiral CT
- From:Journal of Third Military Medical University
2003;0(21):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical value of the oral contrast-enhanced three-dimensional spiral CT cholangiography to display better the intrahepatic and extrahepatic bile ducts. Methods Before spiral CT scanning, the preparation was similar to the conventional X-ray oral cholecystography. The collected parameters included 3-5 mm slice, 1 or 1.5 pitch, 120 kV, 220-250 mAs, and 1 mm reconstruction image. Volume rendering was used to construct the 3D bile duct images. Results In the 20 patients without serious biliary obstruction, oral three-dimensional CT cholangiography displayed the grade Ⅰ branch of hepatic ducts clearly and the displaying rate was 100%. The displaying of the grade Ⅱ branch of hepatic ducts was not good enough and the rate was 60%. The grade Ⅲ branch of hepatic ducts could not be displayed. Conclusion As the substitute and supplement of invasive ERCP, spiral CT 3D cholangiography is safe, simple, painless, and non-invasive. Furthermore, spiral CT 3D cholangiography can display the space structure of bile duct tree more clearly than ERCP. This technique is of great clinical value.
