Multi-stage investigation of deep neural networks for COVID-19 B-line feature detection in simulated and in vivo ultrasound images

Benjamin Frey; Lingyi Zhao; Tiffany Clair Fong; Muyinatu A. Lediju Bell

doi:10.1117/12.2608426

4 April 2022 Multi-stage investigation of deep neural networks for COVID-19 B-line feature detection in simulated and in vivo ultrasound images

Benjamin Frey, Lingyi Zhao, Tiffany Clair Fong, Muyinatu A. Lediju Bell

Author Affiliations +

Proceedings Volume 12033, Medical Imaging 2022: Computer-Aided Diagnosis; 1203308 (2022) https://doi.org/10.1117/12.2608426
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Abstract

COVID-19 is a highly infectious disease with high morbidity and mortality, requiring tools to support rapid triage and risk stratification. In response, deep learning has demonstrated great potential to quicklyand autonomously detect COVID-19 features in lung ultrasound B-mode images. However, no previous work considers the application of these deep learning models to signal processing stages that occur prior to traditional ultrasound B-mode image formation. Considering the multiple signal processing stages required to achieve ultrasound B-mode images, our research objective is to investigate the most appropriate stage for our deep learning approach to COVID-19 B-line feature detection, starting with raw channel data received by an ultrasound transducer. Results demonstrate that for our given training and testing configuration, the maximum Dice similarity coefficient (DSC) was produced by B-mode images (DSC = 0.996) when compared with three alternative image formation stages that can serve as network inputs: (1) raw in-phase and quadrature (IQ) data before beamforming, (2) beamformed IQ data, (3) envelope detected IQ data. The best-performing simulation-trained network was tested on in vivo B-mode images of COVID-19 patients, ultimately achieving 76% accuracy to detect the same (82% of cases) or more (18% of cases) B-line features when compared to B-line feature detection by human observers interpreting B-mode images. Results are promising to proceed with future COVID-19 B-line feature detection using ultrasound B-mode images as the input to deep learning models.

Conference Presentation

Citation Download Citation

Benjamin Frey, Lingyi Zhao, Tiffany Clair Fong, and Muyinatu A. Lediju Bell "Multi-stage investigation of deep neural networks for COVID-19 B-line feature detection in simulated and in vivo ultrasound images", Proc. SPIE 12033, Medical Imaging 2022: Computer-Aided Diagnosis, 1203308 (4 April 2022); https://doi.org/10.1117/12.2608426

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