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Hui Xie,1,2 Qing Li,2,3 Ping-Feng Hu,4 Sen-Hua Zhu,5 Jian-Fang Zhang,6 Hong-Da Zhou,1 Hai-Bo Zhou4

1Department of Radiation Oncology, Affiliated Hospital (Clinical College) of Xiangnan University, Chenzhou, 423000, Peoples Republic of China; 2Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan Province, Chenzhou, 423000, Peoples Republic of China; 3Department of Interventional Vascular Surgery, Affiliated Hospital (Clinical College) of Xiangnan University, Chenzhou, 423000, Peoples Republic of China; 4Department of Radiology, The Second Peoples Hospital of Chenzhou City, Chenzhou, 423000, Peoples Republic of China; 5Beijing Linking Medical Technology Co., Ltd, Beijing, 100085, Peoples Republic of China; 6Department of Physical Examination, Disease Control and Prevention of Chenzhou, Chenzhou, 423000, Peoples Republic of China

Correspondence: Qing LiDepartment of Interventional Vascular Surgery, Affiliated Hospital (Clinical College) of Xiangnan University, 25 Renmin Street, Chenzhou, 423000, Peoples Republic of ChinaTel +86 19918761912Email xnxyliqing@163.com

Objective: The aim of this study was to explore the role of the AI system which was designed and developed based on the characteristics of COVID-19 CT images in the screening and evaluation of COVID-19.Methods: The research team adopted an improved U-shaped neural network to segment lungs and pneumonia lesions in CT images through multilayer convolution iterations. Then the appropriate 159 cases were selected to establish and train the model, and Dice loss function and Adam optimizer were used for network training with the initial learning rate of 0.001. Finally, 39 cases (29 positive and 10 negative) were selected for the comparative test. Experimental group: an attending physician a and an associate chief physician a read the CT images to diagnose COVID-19 with the help of the AI system. Control group: an attending physician b and an associate chief physician b did the diagnosis only by their experience, without the help of the AI system. The time spent by each doctor in the diagnosis and their diagnostic results were recorded. Paired t-test, univariate ANOVA, chi-squared test, receiver operating characteristic curves, and logistic regression analysis were used for the statistical analysis.Results: There was statistical significance in the time spent in the diagnosis of different groups (P< 0.05). For the group with the optimal diagnostic results, univariate and multivariate analyses both suggested no significant correlation for all variables, and thus it might be the assistance of the AI system, the epidemiological history and other factors that played an important role.Conclusion: The AI system developed by us, which was created due to COVID-19, had certain clinical practicability and was worth popularizing.

Keywords: CT, COVID-19, intelligent analysis, AI, helping role

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Artificial intelligence in helping with COVID-19 | JIR - Dove Medical Press