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- W4361193615 abstract "This paper presents a fully-automated method for the identification of suspicious regions of a coronavirus disease (COVID-19) on chest CT volumes. One major role of chest CT scanning in COVID-19 diagnoses is identification of an inflammation particular to the disease. This task is generally performed by radiologists through an interpretation of the CT volumes, however, because of the heavy workload, an automatic analysis method using a computer is desired. Most computer-aided diagnosis studies have addressed only a portion of the elements necessary for the identification. In this work, we realize the identification method through a classification task by using a 2.5-dimensional CNN with three-dimensional attention mechanisms. We visualize the suspicious regions by applying a backpropagation based on positive gradients to attention-weighted features. We perform experiments on an in-house dataset and two public datasets to reveal the generalization ability of the proposed method. The proposed architecture achieved AUCs of over 0.900 for all the datasets, and mean sensitivity $0.853 pm 0.036$ and specificity $0.870 pm 0.040$. The method can also identify notable lesions pointed out in the radiology report as suspicious regions." @default.
- W4361193615 created "2023-03-31" @default.
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- W4361193615 date "2023-03-26" @default.
- W4361193615 modified "2023-09-27" @default.
- W4361193615 title "Identifying Suspicious Regions of Covid-19 by Abnormality-Sensitive Activation Mapping" @default.
- W4361193615 doi "https://doi.org/10.48550/arxiv.2303.14901" @default.
- W4361193615 hasPublicationYear "2023" @default.
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