基于bp神经网络肝纤维化无创性诊断模型地研究

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1、目录中文摘要.....................................................................1英文摘要.....................................................................3引言............................................................................5正文.........................................

2、...................................61资料与方法....................................................................61.1一般资料.....................................................................61.2诊断标准.....................................................................61.2.1慢性

3、乙型肝炎西医诊断标准............................................61.2.2慢性乙型肝炎的中医辨证分型诊断标准..............................61.2.3慢性乙型肝炎的病理学诊断标准.......................................61.3病例纳入和排除标准.......................................................71.3.1纳入标准............................

4、.......................................71.3.2排除标准...................................................................71.4临床资料收集................................................................81.4.1观察项目...................................................................81.4.

5、2实验室指标................................................................81.5肝穿刺组织病理学检测方法..............................................81.6统计学处理..................................................................91.7神经网络诊断模型的建立.................................................9

6、1.8模型的验证.................................................................102结果...........................................................................102.1各项临床指标与肝纤维化分期的相关性分析结果....................102.2肝纤维化BP神经网络诊断模型诊断结果..............................102.2.1有效指标筛选结果.....

7、..................................................132.2.2神经网络模型的建立与应用...........................................1312.2.3检验模型的实际预测效果..............................................152.2.4ANN模型预测能力与实际情况比较ROC曲线....................152.2.5影响因素的敏感度分析..............................

8、...................163讨论........................................................................