Deep learning-based speed of sound aberration correction in photoacoustic images

Seungwan Jeon; Chulhong Kim

doi:10.1117/12.2543440

17 February 2020 Deep learning-based speed of sound aberration correction in photoacoustic images

Seungwan Jeon, Chulhong Kim

Proceedings Volume 11240, Photons Plus Ultrasound: Imaging and Sensing 2020; 112400J (2020) https://doi.org/10.1117/12.2543440
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Beamforming algorithms are widely used for photoacoustic (PA) imaging to reconstruct the initial pressure map. In the reconstruction process, they typically assumed that the imaged biological tissue was a homogeneous medium. However, as biological tissue is generally heterogeneous, the misassumption causes suboptimal image reconstruction. Because it is difficult to predict the heterogeneity of a medium, it was still common to reconstruct images assuming a uniform medium. To solve this problem, we introduce a deep learning-based algorithm that can correct the speed of sound (SoS) aberration in the PA image. We trained a neural network with the multiple simulation datasets and successfully corrected SoS aberrations in a PA in vivo image of the human forearm. We observed that the proposed algorithm effectively suppressed side lobes and noise in the PA image and greatly improves image quality.

Citation Download Citation

Seungwan Jeon and Chulhong Kim "Deep learning-based speed of sound aberration correction in photoacoustic images", Proc. SPIE 11240, Photons Plus Ultrasound: Imaging and Sensing 2020, 112400J (17 February 2020); https://doi.org/10.1117/12.2543440

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