磁共振成像对胆管癌的诊断价值.doc

磁共振成像对胆管癌的诊断价值.doc磁共振成像对胆管癌的诊断价值
作者:郝金钢,袁曙光,赵新湘,闫东,郭立
【摘要】目的探讨胆管癌的MRI和MRCP表现,评价MRI结合MRCP对胆管癌的诊断价值。方法对62例经手术病理证实的胆管癌,回顾性分析其MRI和MRCP表现。结果肝内胆管癌11例表现为肝内不规则长T1、长T2浸润性信号'增强后呈中度环形强化。肝门胆管癌16例,MRI主要表现为肝内胆管扩张,在肝门部胆管突然截断、中断或充盈缺损,肝门部软组织肿块。肝外胆管癌35例,MRI表现为肝内胆管软藤样扩张,胆总管不同部位完全性梗阻。MRCP可显示扩张的肝内外胆管及梗阻部位的狭窄、中断、截断和管腔内的充盈缺损。结论 MRI和MRCP联合应用能较好地对胆管癌进行诊断,并能准确描述和评价胆管癌扩散及浸润范围。

【关键词】胆管肿瘤;磁共振成像;胰胆管造影术,磁共振

Value of magic resonance imaging in dagnosing cholangiocarcinoma
【Abstract】 Objective To investigate magic resonance imaging(MRI) and magic resonance cholangiopancreatography(MRCP) features of bile duct 62 cases of bile duct cancer proved surgically a (n=11) ild rim enhancement on enchanced hilar cholangiocarcinoma (n=16) included intrahepatic biliary dilatation'narroass at hilum of cholangiocarcinoma (n=35) appeared as dilatation of intrahepatic like soft vine;and the segment of mon bile duct discontinued those imaging findings the dilated intrahepatic and extrahepatic bile duct;and above the obstructed mon duct narroent'describe the extension and invasion of cholangiocarcinoma.

【Key s;magic resonance imaging ; cholangiopancreatography'magic resonance

胆管癌在临床上并不少见,其病因至今未明,临床诊断亦较困难,多出现阻塞性黄疸后才确诊。目前,胆管癌的诊断和外科手术治疗比过去有了长足的进步[1]。随着医学影像学的发展,磁共振成像(MRI)以其无创伤、分辨率高的特性对胆管癌诊断的价值和术前评价日益受到重视。本文通过回顾性分析来探讨胆管癌在MRI的征象,以期进一步提高MRI对胆管癌的诊断。

1 资料与方法