Accuracy of MR Imaging for Resectability of Extrahepatic Bile Duct Carcinoma.
10.3348/jkrs.1998.39.4.741
- Author:
Heung Kyu KO
1
;
Myeong Jin KIM
;
Jae Bok CHUNG
;
Jin Sub CHOI
;
Byung Wook CHOI
;
Jae Joon CHUNG
;
Hyung Sik YOO
;
Jong Tae LEE
Author Information
1. Department of Diagnostic Radiology, Research Institute of Radiological Sciece, Yonsei University College of Medicine.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Bile ducts, MR;
Bile ducts, neoplasm;
Magnetic resonance(MR), comparative studies;
Magnetic resonance(MR),treatment planning
- MeSH:
Bile Ducts, Extrahepatic*;
Consensus;
Humans;
Laparotomy;
Magnetic Resonance Imaging*;
Neoplasm Metastasis;
Prospective Studies
- From:Journal of the Korean Radiological Society
1998;39(4):741-747
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To determine the accuracy of preoperative MR imaging for evaluation of resectability of extrahepaticbile duct carcinoma. MATERIALS AND METHODS: Thirty-four patients with proven extrahepatic bile duct carcinomaunderwent pre-operative MR imaging. All MR examinations were performed with a 1.5 T system, using a phased-arraymulticoil. Tumor resectability was prospectively determined by two radiologists who reached consensus. Tenpatients did not undergo surgery because the preoperative MR imaging, CT and endoscopic findings all indicatedunresectability. Twenty-five patients subsequently underwent surgical exploration, and their imaging andpathologic and laparotomic findings were compared. RESULTS: Twenty-two of 34 cases (65%) were resectable. Amongthe 22 cases resectable in laparotomy, pre-operative MR imaging had suggested that 20 were resectable, andsensitivity for resectability was thus 91%. Among the 22 cases in which MR imaging had suggested resectability,macroscopic clearance was complete in 20, giving a positive value of 91%. MR imaging underestimated portal venousor hepatic arterial invasion, and in one case missed small (<1 cm) hepatic metastases. In two cases, MR imagingoverestimated portal venous or hepatic arterial encasement. CONCLUSION: MR imaging is a useful diagnosticmodality for preoperative assessment of resectability of extrahepatic bile duct cancer.
