磁共振胰胆管成像对胆管结石的诊断价值

The Diagnostic Value of MR Cholangiopancreatography in Gallstones

目的:探讨磁共振胰胆管成像(MRCP)对胆管结石诊断的作用。方法:对73例胆管结石患者行MRCP检查。结果:73例中69例MRCP直接显示了病灶,其中58例经手术证实。圆形或近圆形充盈缺损及杯口状压迹为胆管结石典型的MRCP征象,但胆管内气体可引起假阳性。4例肝内胆管小结石(小于4cm)未直接显示,但可见其近心侧的肝内胆管扩张。结论:MRCP是一种安全、无创、可靠的检查方法,可作为无法行ERCP检查或检查失败后的替代检查方法。

To evaluate the diagnostic value of magnetic resonance cholangiopancreatography (MRCP) in gallstones. Methods:Seventy-three patients with gallstones were examined with MRCP. Results: MRCP showed the lesions directly in 69 patients,of which 58 patients were proved by surgery. The characteristic imaging appearance included a round, oval or rnultifaceted area of filling defect and crateriform depression within the lumen of the bile ducts. MRCP could show false-positive result caused by air within the bile ducts. In the other 4 patients with tiny intra-hepatic stones ( < 4 mm), MRCP could not show the lesions except for the proximal bile duct dilation. Conclusion:MRCP is a safe,non-invasive and reliable examination and may act as substitute method for patients unsuitable for endoscopic retrograde cholangiopancreatography (ER-CP).