良恶性胆管梗阻的低场MRI诊断与鉴别诊断

The MR Diagnosis of Malignant and Benign Biliary Obstructive Disease with Low Field MRI

目的探讨低场MRI对胆管梗阻性疾病的诊断和鉴别诊断价值。资料与方法回顾性分析经手术病理证实或临床资料完整的56例胆管梗阻的低场MRI表现。结果胆管癌12例,胰头癌14例,壶腹癌7例,扩张的胆管表现为“软藤”状。胆管结石18例,胆管炎症3例,术后狭窄2例,扩张的胆管表现为“枯枝”状。结论低场MRI对胆管梗阻性疾病定位诊断准确,定性诊断也具有较高的特异性,是一种安全快捷、非创伤性的检查方法,能为胆管梗阻的诊治及术后评估提供可靠的依据。

Objective To investigate MR findings and differential diagnosis of biliary obstructive disease with Low Field MRI, Materials and Methods MR findings of 56 cases with biliary obstructive disease proved surgically and pathologically were analyzed retrospectively. Results The MR findings of cholangiocarcinomas（n = 12）, head of the pancreatic cancers （ n = 14）, ampulla carcinomas （ n = 7）, which dilated biliary ducts were appeared as “soft canes-like”. Bile duct stone （ n = 18）, bile duct infection （ n = 3）, bile duct was narrow after surgical operation （ n = 2）, which dilated biliary ducts were appeared “withered tree branches-like”. Conclusion MR can accurately define the biliary obstructive disease, the specificity for diagnosis of biliary obstructive is very high, it is safe, quick and noninvasive effective modality,