arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.05576eess.IVcs.CVcs.LG
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胸部X线图像多通道迁移学习用于COVID-19筛选

Multi-Channel Transfer Learning of Chest X-ray Images for Screening of COVID-19

Opticho(옵티코(Opticho))

Sampa Misra, Seungwan Jeon, Seiyon Lee, Ravi Managuli, Chulhong Kim

摘要:

2019年新型冠状病毒(COVID-19)在全球迅速蔓延,正在影响整个社会。目前筛查COVID-19患者的金标准测试是聚合酶链反应测试。然而,COVID-19检测试剂盒并不广泛可用且耗时。因此,作为一种替代方法,正在考虑进行胸部X光检查,以进行快速筛查。由于COVID-19在胸部X光片中的表现在特征上各不相同,并且需要专门阅读COVID-19胸部X光片,因此限制了其用于诊断。为了解决放射科医生快速阅读胸部X光片的挑战,我们提出了一个基于ResNet架构的多通道迁移学习模型,以促进COVID-19胸部X光片的诊断。三种基于ResNet的模型使用Dataset_A重新训练(模型a、b和c)数据集_B(4245例肺炎和1763例非肺炎)和数据集_C(184例COVID-19和5824例非COVID 19),以分类(a)正常或患病,(b)肺炎或非肺炎,以及(c)COVID-19或非COVID 19。最后,使用Dataset_D(1579例正常,4245例肺炎和184例COVID-19)对这三个模型进行了集成和微调,以分类正常,肺炎和COVID-19病例。我们的结果表明,集成模型比单一ResNet模型更准确,后者也使用Dataset_D进行了重新训练,因为它为每个类提取了更多相关的语义特征。我们的方法提供了94%的准确率和100%的召回率。因此,我们的方法可能有助于临床医生筛查患者的COVID-19,从而促进立即分诊和治疗,以获得更好的结果。

英文摘要:

The 2019 novel coronavirus (COVID-19) has spread rapidly all over the world and it is affecting the whole society. The current gold standard test for screening COVID-19 patients is the polymerase chain reaction test. However, the COVID-19 test kits are not widely available and time-consuming. Thus, as an alternative, chest X-rays are being considered for quick screening. Since the presentation of COVID-19 in chest X-rays is varied in features and specialization in reading COVID-19 chest X-rays are required thus limiting its use for diagnosis. To address this challenge of reading chest X-rays by radiologists quickly, we present a multi-channel transfer learning model based on ResNet architecture to facilitate the diagnosis of COVID-19 chest X-ray. Three ResNet-based models (Models a, b, and c) were retrained using Dataset_A (1579 normal and 4429 diseased), Dataset_B (4245 pneumonia and 1763 non-pneumonia), and Dataset_C (184 COVID-19 and 5824 Non-COVID19), respectively, to classify (a) normal or diseased, (b) pneumonia or non-pneumonia, and (c) COVID-19 or non-COVID19. Finally, these three models were ensembled and fine-tuned using Dataset_D (1579 normal, 4245 pneumonia, and 184 COVID-19) to classify normal, pneumonia, and COVID-19 cases. Our results show that the ensemble model is more accurate than the single ResNet model, which is also re-trained using Dataset_D as it extracts more relevant semantic features for each class. Our approach provides a precision of 94 % and a recall of 100%. Thus, our method could potentially help clinicians in screening patients for COVID-19, thus facilitating immediate triaging and treatment for better outcomes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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