Application of CT and MRI in diagnosis and preoperative evaluation of periampullary carcinoma / 中华全科医师杂志

ABSTRACT

Periampullary carcinoma includes carcinoma of head of pancreas, carcinoma of lower common bile duct, ampullary carcinoma and adenocarcinoma of duodenum. Most of the periampullary cancers shows the same clinical symptoms their imaging manifestations are overlapping or non-specific . Accurate qualitative positioning and staging of periampullary cancers are of great value in guiding of treatment plan and evaluate postoperative outcomes. CT and MRI examination have made progress in the diagnosis of periampullary carcinoma. CT scan has a good spatial and temporal resolution, while MRI has a good tissue resolution. CT and MRI examination can be used for preoperative assessment of tumor resectability and invasion range, which is of certain value.