Slow injection dynamic CT in the diagnosis and staging of bile duct carcinoma

• Published in: Tando Vol. 7; no. 5; pp. 571 - 579
• Main Authors: KIKUCHI, Hiroyuki, KIKUCHI, Toshiyuki, NAGASHIMA, Tohru, ISONO, Kaichi, YAMAMOTO, Hiroshi
• Format: Journal Article
• Language: Japanese
• Published: Japan Biliary Association 1993
• Subjects: dynamic CT
• ISSN: 0914-0077; 1883-6879
• DOI: 10.11210/tando1987.7.5_571

Slow injection dinamic CT (SI-CT) using GE CT/T9800 was performed in 24 resectable bile duct carcinomas,77 normal subjects,5 benign bile duct strictures,5 patients with bile duct drainage and 3 choledocholithiasis. Bile duct carcinoma appeared as protruded lesion in the dilated duct or thickening of the duct wall. Protruded lesion was readily diagnosed by SI-CT. In carcinoma demonstrated as thickening of the duct wall differentiation was required from benign lesion. However, it was possible to establish the diagnosis by evaluating thickness of wall and degree of enhancement. Compared to benign bile duct stricture and inflammation, carcinoma showed thicker duct wall and stronger enhancement. SI-CT was also accurate in the diagnosis of longitudinal extension of carcinoma. In 78.9% of tumor extension to the bilateral hepatic ducts and in 94.1% of extension to the intrapancreatic bile ducts were correctly diagnosed. SI-CT should be performed for preoperative assessment of bile duct carcinoma.