Accuracy of MR Imaging for Resectability of Extrahepatic Bile Duct Carcinoma
Journal of the Korean Radiological Society
;
: 741-747, 1998.
Article
in Korean
| WPRIM
| ID: wpr-216126
ABSTRACT
PURPOSE:
To determine the accuracy of preoperative MR imaging for evaluation of resectability of extrahepaticbile duct carcinoma. MATERIALS ANDMETHODS:
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Magnetic Resonance Imaging
/
Prospective Studies
/
Bile Ducts, Extrahepatic
/
Consensus
/
Laparotomy
/
Neoplasm Metastasis
Type of study:
Practice guideline
/
Observational study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Radiological Society
Year:
1998
Type:
Article
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