热带病与寄生虫学 ›› 2024, Vol. 22 ›› Issue (6): 358-363.doi: 10.20199/j.issn.1672-2302.2024.06.007

• 实验研究 • 上一篇    下一篇

基于深度学习技术的日本血吸虫抗体检测结果智能判读模型的建立和效能评价

马晓荷1(), 章乐生1, 汪峰峰1, 路标2, 孙成松1, 李清越1, 王旗1, 操治国1(), 汪天平1()   

  1. 1 安徽省疾病预防控制中心,安徽合肥 230601
    2 江苏好用健康科技有限公司
  • 收稿日期:2024-05-29 出版日期:2024-12-20 发布日期:2025-01-23
  • 通信作者: 操治国,ahzhiguo@126.com;汪天平,tpwang906@163.com
  • 作者简介:马晓荷,女,硕士,微生物检验师,研究方向:微生物检验与寄生虫病预防控制。E-mail: xiaohema1987@hotmail.com
  • 基金资助:
    安徽省卫生健康科研项目(AHWJ2022b003);安徽省重点研究与开发计划项目(2022e07020003)

Establishment and efficacy evaluation of a deep learning-based intelligent interpretation model for IHA detection results of Schistosoma japonicum antibody

MA Xiaohe1(), ZHANG Lesheng1, WANG Fengfeng1, LU Biao2, SUN Chengsong1, LI Qingyue1, WANG Qi1, CAO Zhiguo1(), WANG Tianping1()   

  1. 1 Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, Anhui Province, China
    2 Jiangsu Haoyong Health Technology Co., Ltd.
  • Received:2024-05-29 Online:2024-12-20 Published:2025-01-23
  • Contact: CAO Zhiguo,ahzhiguo@126.com;WANG Tianping,tpwang906@163.com

摘要:

目的 建立一种基于深度学习技术的日本血吸虫抗体间接血凝试验(indirect hemagglutination assay, IHA)检测结果的智能判读模型,并评价其判读效能,实现血吸虫病IHA检测结果判读自动化和智能化。方法 制备、收集日本血吸虫阳性及阴性家兔(人)血清,制作不同凝集程度的IHA检测结果图片,并对凝集结果进行评定;采集IHA反应板上无反应孔的图片,对图片进行图像增强处理,建立图片数据集。基于卷积神经网络PP-LCNet建立智能判读模型,对模型进行训练及测试。IHA检测经不同比例(1∶5~1∶100)稀释的日本血吸虫“金标准”阳性家兔血清及“金标准”阴性家兔血清,由专业技术人员和智能判读模型分别判定结果,计算二者的特异性、敏感性、准确率、F1值、约登指数和诊断一致性(Kappa检验),绘制受试者工作特征(receiver operation characteristic, ROC)曲线,比较二者判读结果的准确性。结果 共获得IHA反应图片15 956张,其中阴性5 878张,弱阳性2 164张,阳性2 271张,无反应孔图片5 643张。经过图像增强处理后,图片集合计31 856张,其中训练集25 487张,测试集6 369张。效能评价结果显示,除特异性和专业技术人员一致外(均为100.00%),模型的准确率、敏感性、F1值、约登指数、ROC曲线下面积分别为99.43%、99.09%(97.84%,100.34%)、99.54%、0.990 9、0.995±0.009,均略高于专业技术人员。智能判读模型的敏感性和专业技术人员A[95.45%(92.70%,98.20%)]和B[93.18%(89.85%, 96.51%)]之间的差异有统计学意义(χ2=6.125、11.077,P均<0.05),和专业技术人员C[98.64%(95.31%, 97.17%)]之间的差异无统计学意义(χ2=0.000,P>0.05)。智能模型的判定结果和“金标准”保持较高的一致性(Kappa=0.988,P<0.05),略高于3位专业技术人员(Kappa=0.940、0.910、0.982,P均<0.05)。结论 基于深度学习技术建立的智能判读模型识别日本血吸虫抗体IHA检测结果的准确性很高,实际工作中可用于日本血吸虫病IHA检测结果的智能判读。

关键词: 日本血吸虫, 间接血凝试验, 深度学习, 图像识别, 智能判读

Abstract:

Objective To develop an intelligent interpretation model for the results of indirect hemagglutination assay(IHA)of Schistosoma japonicum antibody in sera based on deep learning algorithms, and to preliminarily evaluate its efficacy so as to realize automatically and intelligently translating the results of schistosomiasis by diagnostic IHA. Methods Prepare and collect serum samples from rabbits (humans) with positive and negative results of Schistosoma japonicum, create IHA test result images with different levels of agglutination, and evaluate the agglutination results. The images with microtiter tray absent of IHA reaction were collected, and treated by enhancement, on which basis the image data sets were constituted. Then the intelligent interpretation model was created based on convolutional neural network PP-LCNet algorithms, and trained and tested respectively by training set and test set. The S. japonicum antibody gold-standard negative and positive rabbit sera diluted in different ratio (1∶5-1∶100) were detected by IHA, and the results were interpreted by three well-experienced professionals and the intelligent translating model independently. The performances of the model and professionals were evaluated as the specificity, sensitivity, accuracy, F1 score, diagnostic consistency (Kappa value). The receiver operation characteristic (ROC) curves were plotted to compare the coherence by the model and the professionals. Results In total, 15 956 images quantified by IHA were obtained, in which 2 271 were positive, 2 164 weak positive and 5 878 were negative reactions. Reaction was absent in 5 643 images of the microtiter trays. After the image enhancement, a total of 31 856 image sets were obtained, and divided training set (n=25 487) and test set (n=6 369). Efficacy evaluation showed that, except for the consistency in specificity (The agreement was 100.00% by the model and experts), the accuracy, sensitivity, F1 scores, Youden index and areas under ROC curves were 99.43%, 99.09%(97.84%, 100.34%), 99.54%, 0.990 9 and 0.995±0.009, respectively by the model results, which were slightly higher than the findings by professionals. The sensitivity of the intelligent interpretation model showed a statistically significant difference (χ2=6.125, 11.077, both P<0.05) between professional technicians A [95.45% (92.70%, 98.20%)] and B [93.18% (89.85%, 96.51%)], while there was no statistically significant difference (χ2=0.000, P>0.05) between professional technicians C [98.64% (95.31%, 97.17%)]. The results generated by the intelligent interpretation model highly agreed with gold standard. The consistency was somewhat better than the three professionals (Kappa= 0.988 vs. Kappa= 0.940, 0.910, 0.982, respectively, all P<0.05). Conclusion The intelligent interpretation model based on deep learning technology established in this study can accurately identify the results of S. japonicum antibody detection in sera by IHA, suggesting that it can be used for intelligently translating the IHA results for schistosomiasis japonica.

Key words: Schistosoma japonicum, Indirect Hemagglutination Assay, Deep learning, Image Recognition, Intelligent interpretation

中图分类号: