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1·Abnormal changes in hepatobiliary excretion function in cholelithiasis can be showed by hepatobiliary scintigraphy. ROI and TAC can improve the diagnosis rate of early biliary tract obstruction.

结果表明肝胆动态显像检查可以显示出胆管结石时肝胆排泄功能的异常，ROI技术能够提高早期胆道梗阻的诊断率。