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１材料和方法１．１材料１９８９－０２／１９９７－１２应用彩色多普勒超声进行门脉系血管检查的２０６例均为临床明确诊断的住院患者，其中男１７６例，女３０例，年龄２０岁～６８岁，平均４Ｉ岁肝功能分级：ＣｈｉｌｄＡ级２７例，Ｂ级４６例，Ｃ级１３３例其中１４２例有
1 Materials and Methods 1.1 Materials 1989-02 / 1997-12 portal vein blood vessels using color Doppler ultrasound examination of 206 cases were clinically diagnosed inpatients, including 176 males and 30 females, age 20 Aged 68 years old, with an average of 4I-year-old liver function grading: 27 cases of ChildA grade, 46 cases of grade B, 133 cases of class C, of which 142 cases