Application of deep learning in the real-time diagnosis of gastric lesion based on magnifying optical enhancement videos.
Application of deep learning in the real-time diagnosis of gastric lesion based on magnifying optical enhancement videos.
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深度学习在基于放大光学增强视频的胃部病变实时诊断中的应用
DOI：
10.3389/fonc.2022.945904
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发表时间：
2022
影响因子：
4.7
通讯作者：
Li, Yanqing
中科院分区：
文献类型：
--
作者：
Ma, Mingjun;Li, Zhen;Yu, Tao;Liu, Guanqun;Ji, Rui;Li, Guangchao;Guo, Zhuang;Wang, Limei;Qi, Qingqing;Yang, Xiaoxiao;Qu, Junyan;Wang, Xiao;Zuo, Xiuli;Ren, Hongliang;Li, Yanqing
关键词：
Magnifying image-enhanced endoscopy was demonstrated to have higher diagnostic accuracy than white-light endoscopy. However, differentiating early gastric cancers (EGCs) from benign lesions is difficult for beginners. We aimed to determine whether the computer-aided model for the diagnosis of gastric lesions can be applied to videos rather than still images. A total of 719 magnifying optical enhancement images of EGCs, 1,490 optical enhancement images of the benign gastric lesions, and 1,514 images of background mucosa were retrospectively collected to train and develop a computer-aided diagnostic model. Subsequently, 101 video segments and 671 independent images were used for validation, and error frames were labeled to retrain the model. Finally, a total of 117 unaltered full-length videos were utilized to test the model and compared with those diagnostic results made by independent endoscopists. Except for atrophy combined with intestinal metaplasia (IM) and low-grade neoplasia, the diagnostic accuracy was 0.90 (85/94). The sensitivity, specificity, PLR, NLR, and overall accuracy of the model to distinguish EGC from non-cancerous lesions were 0.91 (48/53), 0.78 (50/64), 4.14, 0.12, and 0.84 (98/117), respectively. No significant difference was observed in the overall diagnostic accuracy between the computer-aided model and experts. A good level of kappa values was found between the model and experts, which meant that the kappa value was 0.63. The performance of the computer-aided model for the diagnosis of EGC is comparable to that of experts. Magnifying the optical enhancement model alone may not be able to deal with all lesions in the stomach, especially when near the focus on severe atrophy with IM. These results warrant further validation in prospective studies with more patients. A ClinicalTrials.gov registration was obtained (identifier number: NCT04563416). ClinicalTrials.gov, identifier NCT04563416.
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