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目的研究恶性胆道梗阻的MR胰胆管成像表现、分型,并与病理对照。方法37例恶性胆道梗阻患者,常规T1WI、T2WI及脂肪抑制T2WI检查后,行MRCP检查。根据病变发生部位分型。并将每种类型的MRCP表现与病理组织学结果对照。结果37例患者,根据MRCP表现分成4种类型。其中I型3例,病理为肝内胆管细胞癌;II型7例,病理为胆管癌4例,胆囊癌3例;Ⅲ型14例,胆管癌4例,胆囊癌3例,胰头癌2例,壶腹癌3例,十二指肠癌2例;Ⅳ型13例,胆管癌6例,胰头癌4例,壶腹癌3例。结论恶性胆道梗阻有不同的MRCP表现,反映其病理组织学变化。
Objective To study the MR cholangiopancreatography of malignant biliary obstruction, type, and pathological comparison. Methods 37 patients with malignant biliary obstruction, conventional T1WI, T2WI and fat suppression T2WI examination, MRCP examination. According to the site of lesion typing. Each type of MRCP performance was compared to histopathological findings. Results 37 patients, according to MRCP performance is divided into four types. Of which type I in 3 cases, pathological intrahepatic cholangiocarcinoma; type II in 7 cases, pathological cholangiocarcinoma in 4 cases, gallbladder carcinoma in 3 cases; type Ⅲ in 14 cases, 4 cases of cholangiocarcinoma, gallbladder carcinoma in 3 cases, pancreatic cancer 2 For example, 3 cases of ampullary carcinoma, 2 cases of duodenal cancer; 13 cases of type Ⅳ, 6 cases of cholangiocarcinoma, 4 cases of pancreatic head cancer, 3 cases of ampulla carcinoma. Conclusion Malignant biliary obstruction has different MRCP manifestations, reflecting the histopathological changes.