Chest pathology identification using deep feature selection with non-medical training. Issue 3 (4th May 2018)

• Record Type: Journal Article
• Authors: Bar, Yaniv; Diamant, Idit; Wolf, Lior; Lieberman, Sivan; Konen, Eli; Greenspan, Hayit
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 6:Issue 3(2018)
• Page Start: 259
• Page End: 263
• Publication Date: 2018-05-04
• Subjects: Radiography -- chest X-rays -- computer-aided diagnosis -- deep learning -- CNN -- feature selection; Imaging systems in biology -- Periodicals; Imaging systems in medicine -- Periodicals; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; 616.0757
• DOI: 10.1080/21681163.2016.1138324
• Languages: English
• ISSNs: 2168-1163

Abstract

Abstract : We demonstrate the feasibility of detecting pathology in chest X-rays using deep learning approaches based on non-medical learning. Convolutional neural networks (CNN) learn higher level image representations. In this work, we explore the features extracted from layers of the CNN along with a set of classical features, including GIST and bag-of-words. We show results of classification using each feature set as well as fusing among the features. Finally, we perform feature selection on the collection of features to show the most informative feature set for the task. Results of 0.78–0.95 AUC for various pathologies are shown on a data-set of more than 600 radiographs. This study shows the strength and robustness of the CNN features. We conclude that deep learning with large-scale non- medical image databases may be a good substitute, or addition to domain-specific representations which are yet to be available for general medical image recognition tasks.