摘要
目的:研究True FISP与MRCP序列在胆总管结石中的应用价值与局限性。材料与方法:对30例经ERCP或手术证实的胆总管结石患者行术前True FISP及MRCP序列扫描,MRCP与True FISP序列分别作阅片诊断,再结合其他序列进行诊断,最后与病理结果进行对比分析。结果:True FISP像、MRCP像均可显示胆总管的扩张。True FISP像、MRCP像对胆总管结石的检出率分别为92.5%、93.3%;其中5例胆总管小结石及2例泥沙样结石True FISP未检出,4例胆总管末端结石MRCP未检出,结合两种序列对结石的检出率为97.8%。结论:True FISP序列对胆总管的管壁和管周组织显示较好,有利于末端胆总管结石的检出,MRCP有利于胆管系统的整体显示,对胆总管小结石及泥沙样结石显示较好,结合两种序列可对胆总管结石作出更准确的评价。
Purpose:To study the value and limitations of True FISP and MRCP in the common bile duct stones.Materials and Methods:True FISP and MRCP were performed in 30 patients with choledocholithiasis confirmed by ERCP or surgery.MRCP and True FISP of 30 patients were interpreted by two radiologists on a blinded basis,respectively.All the sequences were used to make diagnosis and the findings were compared with the results of ERCP,operation and pathology.Results:All sequences showed 100% sensitivities in recognizing the dilated tracts.the sensitivity for common bile duct stones recognition by True FISP and MRCP were 92.5%,93.3%,respectively;of which 5 cases of biliary stones and 2 cases of small sand-like stones was not detected by True FISP,4 cases of bile duct stones was not detected by MRCP,combined with the two series the sensitivity was 97.8%.Conclusion:The True FISP sequence is good at revealing the common bile duct wall and perivascular tissue,is conducive to the detection of the end of common bile duct stones;MRCP is well in showing the whole outline of pancreaticobiliary,is conducive to display of small stones and sand-like stones.More accurate diagnosis will be obtained if the two imaging techniques are applied together.
出处
《现代医用影像学》
2011年第5期298-301,共4页
Modern Medical Imageology
