Journal
Publisher
SCITEPRESS
DOI: 10.5220/0010302500650072
Keywords
Computer-aided Diagnosis of Lung Conditions; Domain-shift Detection and Removal; Chest Radiographs
Categories
Funding
- AI Initiative, Laboratory Directed Research and Development Program of Oak Ridge National Laboratory [LOIS 9613, LOIS 9831]
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Deep learning models are being deployed in medical centers to assist radiologists in diagnosing lung conditions from chest radiographs. However, the ability of pre-trained models to generalize in clinical settings is limited due to changes in data distributions and equipment heterogeneity. A domain-shift detection and removal method is introduced to overcome this issue, showing effectiveness in abnormality detection in chest radiographs in a clinical setting.
Deep learning (DL) models are being deployed at medical centers to aid radiologists for diagnosis of lung conditions from chest radiographs. Such models are often trained on a large volume of publicly available labeled radiographs. These pre-trained DL models' ability to generalize in clinical settings is poor because of the changes in data distributions between publicly available and privately held radiographs. In chest radiographs, the heterogeneity in distributions arises from the diverse conditions in X-ray equipment and their configurations used for generating the images. In the machine learning community, the challenges posed by the heterogeneity in the data generation source is known as domain shift, which is a mode shift in the generative model. In this work, we introduce a domain-shift detection and removal method to overcome this problem. Our experimental results show the proposed method's effectiveness in deploying a pre-trained DL model for abnormality detection in chest radiographs in a clinical setting.
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