Accuracy of MR Imaging for Resectability of Extrahepatic Bile Duct Carcinoma
Journal of the Korean Radiological Society
; : 741-747, 1998.
Article
em Ko
| WPRIM
| ID: wpr-216126
Biblioteca responsável:
WPRO
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.
Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Imageamento por Ressonância Magnética
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Estudos Prospectivos
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Ductos Biliares Extra-Hepáticos
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Consenso
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Laparotomia
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Metástase Neoplásica
Tipo de estudo:
Guideline
/
Observational_studies
Limite:
Humans
Idioma:
Ko
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
1998
Tipo de documento:
Article