中国现代神经疾病杂志 ›› 2020, Vol. 20 ›› Issue (7): 585-590. doi: 10.3969/j.issn.1672-6731.2020.07.005

• 颅脑创伤 • 上一篇    下一篇

2 基于卷积神经网络的自发性脑出血血肿分割方法的一致性评价

常健博1, 姜燊种1, 陈显金2, 骆嘉希3, 李沃霖3, 张庆华2, 魏俊吉1, 石林4, 冯铭1, 王任直1   

  1. 1 100730 中国医学科学院 北京协和医学院 北京协和医院神经外科;
    2 518051 华中科技大学协和深圳医院(南山医院)神经外科;
    3 518000 深圳博脑研究院;
    4 999077 香港中文大学医学院影像及介入放射学系
  • 收稿日期:2020-05-02 出版日期:2020-07-25 发布日期:2020-07-24
  • 通讯作者: 冯铭,Email:jackietz@163.com;王任直,Email:wangrz@126.com
  • 基金资助:

    北京市自然科学基金资助项目(项目编号:7182137);中国医学科学院医学与健康科技创新工程重大协同创新项目(项目编号:2017-I2M-3-014);中国医学科学院北京协和医学院研究生教育教学立项项目(项目编号:10023201900107)

Consistency evaluation of an automatic segmentation for quantification of intracerebral hemorrhage using convolution neural network

CHANG Jian-bo1, JIANG Shen-zhong1, CHEN Xian-jin2, LOK Ka-hei3, LEE Yuk-lam3, ZHANG Qing-hua2, WEI Jun-ji1, SHI Lin4, FENG Ming1, WANG Ren-zhi1   

  1. 1 Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China;
    2 Department of Neurosurgery, Union Shenzhen Hospital(Nanshan Hospital), Huazhong University of Science and Technology, Shenzhen 518051, Guangdong, China;
    3 Shenzhen BrainNow Research Institute, Shenzhen 518000, Guangdong, China;
    4 Department of Imaging and Interventional Radiology, the Chinese University of Hong Kong, Hongkong 999077, China
  • Received:2020-05-02 Online:2020-07-25 Published:2020-07-24
  • Supported by:

    This study was supported by the Natural Science Foundation of Beijing (No. 7182137), Chinese Academy of Medical Sciences (CAMS) Innovation Fund for Medical Sciences (No. 2017-I2M-3-014), and Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical School Postgraduate Teaching Innovation Fund (No. 10023201900107).

摘要:

目的 建立一种基于卷积神经网络的脑血肿分割算法,探讨算法与手动分割结果的一致性。方法 纳入中国颅内出血影像数据库中146例头部CT平扫影像图片,采用随机数字表法分为训练集(90例)、测试集(26例)和验证集(30例),验证集采用手动分割、算法分割、精确多田公式和传统多田公式共4种方法对血肿体积进行测量,以手动分割为“金标准”,分别对其他3种算法进行一致性检验。结果 与多田公式方法相比,算法分割的百分误差最小,为15.54(8.41,23.18)%,组内相关系数最高,为0.983;Bland-Altman一致性检测显示,93.33%的数据在95%一致性界限(95% LoA),且其95% LoA最窄,为-6.46~5.97 ml。算法分割的百分误差在不同血肿形态、体积比较中差异无统计学意义(均P > 0.05)。结论 卷积神经网络构建的算法分割具有一定的临床应用前景,但仍需更大样本的临床试验加以验证。

关键词: 脑出血, 人工智能, 神经网络(计算机), 体层摄影术, X线计算机

Abstract:

Objective To establish an automatic segmentation algorithm using convolution neural network, and to validate the consistency between the algorithm and manual segmentation. Methods One hundred and forty-six CT scans of intracerebral hemorrhage (ICH) were included from Chinese Intracranial Hemorrhage Image Database (CICHID). They were randomly divided into training set (n=90), testing set (n=26) and validation set (n=30). All CT scans were manual segmentation. Training set and testing set were used for algorithm training. The validation set was measured by four methods including manual segmentation, algorithm segmentation, accurate Tada formula and traditional Tada formula. The consistency test was performed. Results Compared with the Tada formula methods, the percentage error of algorithm values was the smallest 15.54 (8.41, 23.18)%, and algorithm agreement with the manual reference was the strongest (correlation coefficient 0.983). Bland-Altman analysis showed that 93.33% of the data was within the 95% limits of agreement (95% LoA), and 95% LoA was narrow (-6.46-5.97 ml). No significant differences were found in size and shape (P > 0.05, for all). Conclusions The algorithm using convolutional neural network has a certain application prospect, but it needs still more validation in large sample research.

Key words: Cerebral hemorrhage, Artificial intelligence, Neural networks (computer), Tomography, X-ray computed