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目的:探讨低场MRI在胆道系统疾病诊断中的应用价值。资料与方法:对57例经临床、病理证实的胆道系统疾病患者的MRI资料进行回顾性分析。结果:57例中,胆道结石35例、炎症5例、胆总管囊肿2例、胆管肿瘤15例。胆道结石在T1WI、T2WI、STIR均表现为单个或多个类圆形低信号,MRCP表现为梗阻端圆形或杯口状低信号;胆道肿瘤在T1WI、T2WI中表现为混杂信号肿块,MRCP梗阻端呈截断状或鼠尾状狭窄;胆总管囊肿T1WI低信号,T2WI高信号。结论:在低场MRI中,应用MRCP图像与常规MRI图像相结合,可以提高胆道系统疾病定位及定性诊断的准确性,为临床治疗方案的确定提供有价值的参考依据。
Objective: To investigate the value of low field MRI in the diagnosis of biliary system diseases. Materials and Methods: The MRI data of 57 patients with clinically and pathologically confirmed biliary tract diseases were analyzed retrospectively. Results: Of the 57 cases, 35 were choledocholithiasis, 5 were inflammation, 2 were choledochal cysts and 15 were cholangiocarcinomas. Biliary stones in T1WI, T2WI, STIR showed single or multiple circular low signal, MRCP showed obstructive round or cup-shaped low signal; biliary tumors in T1WI, T2WI showed mixed signal mass, MRCP obstruction End was truncated or tail-like narrow stenosis; choledochal cyst T1WI low signal, T2WI high signal. Conclusion: In low field MRI, the combination of MRCP and conventional MRI can improve the accuracy of localization and qualitative diagnosis of biliary tract diseases, and provide valuable reference for the determination of clinical treatment plan.