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Rev. imagem ; 28(1): 33-39, jan.-mar. 2006. ilus
Article in Portuguese | LILACS | ID: lil-510364

ABSTRACT

Com o objetivo de ilustrar, de maneira sistematizada, as principais variantes anatômicas e anomalias congênitas observadas em exames de colangiopancreatografia por ressonância magnética (CPRM), realizamos estudo retrospectivo em exames de CPRM com as mais diversas indicações, procurando por variantes anatômicas e anomalias congênitas das vias biliares e pancraáticas. Todos os exames foram realizados em equipamento de alto campo (1,0 T ou 1,5 T), obtendo-se imagens no plano axial ponderadas em T1 (FFE) e T2 (TSE), e no plano coronal, com técnica de CPRM. Apresentamos variantes anatômicas relacionadas à posição da vesícula biliar, à distribuição e posição das vias biliares intra-hepáticas, do ducto cístico, ducto colédoco e ductos pancreáticos. Mostramos também exemplos dos principais tipos de dilatação cística congênita das vias biliares. Reconhecer as principais variantes anatômicas e anomalias congênitas das vias biliares e pancreáticas permite otimizar a eficácia diagnóstica da CPRM.


In order to illustrate the role of magnetic resonance cholangiopancreatography (MRCP) in the diagnosis of anatomic variants and congenital abnormalities of the biliary tree, we onducted a retrospective study of MRCP scans performed due to different indications to identify anatomic variants and congenital abnormalities of the pancreas and biliary tree. High field MR machines (1.0 T and 1.5 T) and 3D TSE sequences were used to obtain images in the axial and coronal planes with MIP reconstructions in all studies. MRCP showed low cystic duct insertion, medial cystic duct insertion, and a parallel course of the cystic and hepatic ducts as well as bile duct bifurcation abnormalities and aberrant right and left hapatica duct. We also present examples of the main types of congenital cystic dilatation of the bile ducts. The recognition of the main anatomic variants of the biliary tree and pancreatic ductshelps to optimize the diagnostic accurancy of MR cholangiopancreatography.


Subject(s)
Humans , Cholangiopancreatography, Magnetic Resonance , Bile Ducts/anatomy & histology , Bile Ducts/abnormalities , Pancreatic Ducts/anatomy & histology , Pancreatic Ducts/abnormalities , Early Diagnosis , Retrospective Studies
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