MRI对先天性胆管扩张症的术前定位价值

Preoperative localization value of MRI and MRCP in patients with congenital biliary dilatation:a report of 30 cases

目的探讨核磁共振影像对先天性胆管扩张症的术前定位价值。方法回顾性分析30例经手术及病理证实的先天性胆管扩张症的核磁共振影像资料。结果30例MRI与MRCP术前检查可较好的显示胆管囊肿的位置及其与周围胆道系统和胆管外解剖结构的关系,经手术中所见证实:依Todani分型法,先天性胆管扩张症的术前定位分型诊断准确率为100%,胰管准确显示率为73·3%,胰胆管合流处准确显示率为33·3%。结论核磁共振检查是对本病手术前定位的可靠方法。

Objective To evaluate the preoperative localization value of MRI and MRCP for congenital biliary dilatation. Methods 30 cases of congenital biliary dilatition diagnosed by either surgery or pathology were studied. MRI and MRCP findings of all these cases were analyzed. Results MRI and MRCP preoperative examination manifested the place of choledochal cyst and the relation between choledochal cyst and the biliary ductal system around in all 30 patients. Through surgery findings as follow, using Todani＇ s classification, the accuracy of MRI and MRCP in evaluating the site and classification of congenital biliary dilatation was 100 %, the accurate visualization rate of pancreatic duct was 73.3 % and the junction of pancreaticobiliary duct was 33.3%. Conclusion MRI and MRCP manifestations are very reliable in preoperative localization of congenital biliary dilatation.