Cited by 9COVID-19 diagnosis using AIRadiomics and Machine Learning in Medical ImagingArtificial Intelligence in Healthcare and Education

A Systematic Search over Deep Convolutional Neural Network Architectures for Screening Chest Radiographs

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Mitra, Arka, Chakravarty, Arunava, Ghosh, Nirmalya, Sarkar, Tandra, Sethuraman, Ramanathan, Sheet, Debdoot·2020·2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

Abstract

Chest radiographs are primarily employed for the screening of pulmonary and cardio-/thoracic conditions. Being undertaken at primary healthcare centers, they require the presence of an on-premise reporting Radiologist, which is a challenge in low and middle income countries. This has inspired the development of machine learning based automation of the screening process. While recent efforts demonstrate a performance benchmark using an ensemble of deep convolutional neural networks (CNN), our systematic search over multiple standard CNN architectures identified single candidate CNN models whose classification performances were found to be at par with ensembles. Over 63 experiments spanning 400 hours, executed on a 11.3 FP32 TensorTFLOPS compute system, we found the Xception and ResNet-18 architectures to be consistent performers in identifying co-existing disease conditions with an average AUC of 0.87 across nine pathologies. We conclude on the reliability of the models by assessing their saliency maps generated using the randomized input sampling for explanation (RISE) method and qualitatively validating them against manual annotations locally sourced from an experienced Radiologist. We also draw a critical note on the limitations of the publicly available CheXpert dataset primarily on account of disparity in class distribution in training vs. testing sets, and unavailability of sufficient samples for few classes, which hampers quantitative reporting due to sample insufficiency.

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Crossref · 10.1109/embc44109.2020.9175246

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  • Chakravarty et al. [23] had an AUC score of 80% with FL, while with the same dataset and ML algorithm articles [67] and [68] had 86% and 87% AUC, respectively.

    “Then as well Chakravarty et al. [23] has an AUC score of 80% with FL environment, but with same dataset and ML algorithm article [67] and [68] have 86% and 87% AUC respectively.”

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Authors
Mitra, A., Chakravarty, A., Ghosh, N., Sarkar, T., Sethuraman, R., & Sheet, D.
Affiliations
  • Indian Institute of Technology Kharagpur (IN)
  • Apollo Gleneagles Hospitals (IN)
  • Intel (India) (IN)
Venue
2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
Publisher
IEEE
Published
2020-07
Volume
2020
Pages
1225-1228
ISSN
2375-7477 (ISSN-L)
OpenAlex
W3018274863
Cited by
9
References
19
Citations by year
2025: 1 · 2024: 1 · 2023: 2 · 2022: 2 · 2021: 3
FWCI
1.92
Type
conference paper
Language
en
Open access
Locations
  • Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › COVID-19 diagnosis using AI
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
  • Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
Keywords
deep convolutional neural networks, CNN architecture comparison, Xception, ResNet-18, saliency maps, RISE, explainable AI, class imbalance, resource-limited settings
MeSH terms
Lung, Radiography, Research, Reproducibility of Results, Neural Networks, Computer

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