中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (19): 3005-3013.doi: 10.3969/j.issn.2095-4344.0318

• 脊柱植入物 spinal implant • 上一篇    下一篇

三种模式识别模型诊断腰椎间盘突出症受压神经根的准确率

李祥蓉1,程 琳2,席家宁3,李 伟3   

  1. 1北京大学医院,北京市 100871;2中央军委装备发展部原亚运村门诊部,北京市 100101;3首都医科大学附属北京康复医院,北京市 100144
  • 出版日期:2018-07-08 发布日期:2018-07-08
  • 通讯作者: 李伟,博士,主治医师,首都医科大学附属北京康复医院,北京市 100144
  • 作者简介:李祥蓉,女,1965年生,四川省西充县人,汉族,1988年重庆医科大学毕业,副主任医师,主要从事健康管理与保健医学、医学统计学建模方面的研究。
  • 基金资助:

    首都特色临床应用研究与成果推广课题(Z161100000516127)

Accuracy of three kinds of pattern recognition models in the diagnosis of nerve root compression in lumbar disc herniation  

Li Xiang-rong1, Cheng Lin2, Xi Jia-ning3, Li Wei3   

  1. 1Peking University Hospital, Beijing 100871, China; 2Out-Patient Department of Asian Games Village, Equipment Development Department of Central Military Commission, Beijing 100101, China; 3Beijing Rehabilitation Hospital of Capital Medical University, Beijing 100144, China
  • Online:2018-07-08 Published:2018-07-08
  • Contact: Li Wei, M.D., Attending physician, Beijing Rehabilitation Hospital of Capital Medical University, Beijing 100144, China
  • About author:Li Xiang-rong, Associate chief physician, Peking University Hospital, Beijing 100871, China
  • Supported by:

    the Capital Clinical Application Research and Achievement Promotion Project, No. Z161100000516127

摘要:

文章快速阅读:

 

文题释义:
模式识别:是指从大量的数据中获取那些有效的、有用的数据的过程。模式识别方法会通过对大量繁琐无序的信息资料进行整理分类,并在杂乱无章的信息中寻找出潜在的联系和具有特征的信号信息,从而实现有效的信息分类和预测。文章主要利用3种最常见的模式识别技术对腰椎间盘突出症患者的表面肌电信号参数进行筛选分类,分析3种方法的优劣,并建立了受压神经根的动态诊断模型。
表面肌电技术:表面肌电图是通过放置在人体皮肤表面的电极记录下来的肌肉活动时发出的信号,实现对神经肌肉功能进行动态评估、监测的设备,具有无创、便携和动态的特点。而目前基于静态的腰椎间盘突出症受压神经根的客观检查方法都面临着诊断正确率不足的问题,而此次研究则将步行过程中的表面肌电信号参数用于受压神经根的定位诊断,这为进一步提高受压神经根的诊断正确率提供新思路。
 
摘要
背景:目前关于腰椎间盘突出症受压神经根的客观检查都面临着诊断能力不足的问题,将模式识别技术与表面肌电技术结合将为提高受压神经根的诊断正确率提供新思路。
目的:通过3种不同的模式识别方法建立腰椎间盘突出症受压神经根的表面肌电识别模型,计算3种模型的诊断准确率并分析不同模式识别技术的应用特点。
方法:采集2015年10月至2016年10月住院并接受手术治疗的24例L4/L5节段椎间盘突出合并L5神经根受压和23例L5/S1节段椎间盘突出合并S1神经根受压患者的表面肌电参数,应用逻辑回归方程、决策树和人工神经网络建立受压神经根的识别模型,计算3种模型的灵敏度、特异度和诊断正确率,通过受试者工作特征曲线比较3种模型的诊断正确率。
结果与结论:①逻辑回归方程最终建立了一个三参数的诊断模型,其诊断率从85.7%-100%,平均为93.6%,该诊断方程的灵敏度和特异度分别为0.98和0.92;②卡方自交互侦测决策树诊断模型的诊断率为42.86%-85.71%,平均为66.43%,该诊断方程的灵敏度和特异度分别为0.77和0.56;③分类回归决策树诊断模型的诊断率为57.14%-85.71%,平均为72.14%,该诊断方程的灵敏度和特异度分别为0.71和0.73;④神经网络诊断模型诊断率为85.7%-100%,平均为92.14%,该诊断方程的灵敏度和特异度分别为0.93和0.92;⑤受试者工作特征曲线的曲线下面积评价3种分类模型时,神经网络为0.98,逻辑回归方程为0.97,决策树为0.90;⑥结果表明,神经网络模型与逻辑回归模型识别受压神经根的正确率均非常满意,明显高于MRI的检查结果,其中神经网络模型的诊断效能更加稳定,故其可以作为一种新的定位诊断受压神经根的辅助方法;在没有条件建立神经网络诊断模型的情况下,逻辑回归同样非常适用;决策树在重要危险因素的筛选方面性能突出,其可以和其他方法联合使用提高识别准确率。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0002-6415-5082(李祥蓉)

关键词: 腰椎间盘突出症, 模式识别, 表面肌电技术, 受压神经根, 诊断模型, 诊断正确率

Abstract:

BACKGROUND: Nerve root compression of lumbar disc herniation is difficult to diagnose. Pattern recognition technology combined with surface electromyography will provide new ideas for improving the diagnostic accuracy of compressed nerve roots.

OBJECTIVE: To establish the recognition model of the nerve root compression of lumbar disc herniation through three kinds of pattern recognition methods, and to analyze the diagnostic accuracy of the models.
METHODS: Twenty-four cases of disc herniation at L4/L5 segments combined with L5 nerve root compression and 23 cases of disc herniation at L5/S1 segments combined with S1 nerve root compression from October 2015 to October 2016 were enrolled. The surface electromyography parameters were collected and the Logistic regression equation, decision tree and artificial neural network were used to establish the identification model of compressed nerve roots. The sensitivity, specificity and diagnosis accuracy of the three models were calculated. The diagnosis accuracy was compared by receiver operating characteristic curve.
REEULTS AND CONCLUSSION: (1) The logistic regression model had established the three models and the accuracy increased from 85.7% to 100%, with an average of 93.6%, and the sensitivity and specificity of the model was 0.98 and 0.92, respectively. (2) The Chi-squared Automatic Interaction Detector showed an accuracy of 42.86%-85.71%, with an average of 66.43%, the sensitivity and specificity of the model was 0.77 and 0.56, respectively. (3) The Classification and Regression Tree showed an accuracy of 57.14%-85.71%, with an average of 72.14%, the sensitivity and specificity of the model was 0.71 and 0.73, respectively. (4) The neural network model showed an accuracy of 85.7%-100%, with an average of 92.14%, and the sensitivity and specificity of the model were 0.93 and 0.92, respectively. (5) The area under the Receiver Operating Characteristic Curve was used to evaluate the three models, and the neural network was 0.98, the logistic regression was 0.97, and the decision tree was 0.90. (6) These results indicate that both neural network model and the logic regression model show satisfactory results in recognition of the compressed nerve roots, which are superior to MRI. The neural network model is more stable and it may be a more suitable auxiliary method for the diagnosis of nerve root compression. The Logistic regression model is suitable when no neural network diagnostic model is established. The decision tree shows a good performance in the screening of risk factors, and which can be combined with other methods to improve the recognition accuracy.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Lumbar Vertebrae, Intervertebral Disk Displacement, Spinal Nerve Roots, Models, Statistical, Tissue Engineering

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