Machine-learning enhanced photoacoustic computed tomography in a limited view configuration

Handi Deng; Xuanhao Wang; Chuangjian Cai; Jianwen Luo; Cheng Ma

doi:10.1117/12.2539148

19 November 2019 Machine-learning enhanced photoacoustic computed tomography in a limited view configuration

Handi Deng, Xuanhao Wang, Chuangjian Cai, Jianwen Luo, Cheng Ma

Proceedings Volume 11186, Advanced Optical Imaging Technologies II; 111860J (2019) https://doi.org/10.1117/12.2539148
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

Photoacoustic imaging is an emerging optical imaging modality which provides optical absorption contrasts and high resolution in the optical diffusive regime. In photoacoustic computed tomography (PACT), often times the detection of the photoacoustic signal only covers a partial solid angle less than 4π, due to experimental or economic constraints. Incomplete spatial coverage always jeopardizes image quality and resolution, and results in significant artifacts and missing of image features. This problem is referred to as “limited view” and has remained unsolved for decades. In this work, we present a new machine-learning-based method that is specifically designed to compensate for the missing information due to limited view. The robustness and effectiveness of our method were demonstrated using numerical, phantom, and in vivo experiments.

Citation Download Citation

Handi Deng, Xuanhao Wang, Chuangjian Cai, Jianwen Luo, and Cheng Ma "Machine-learning enhanced photoacoustic computed tomography in a limited view configuration", Proc. SPIE 11186, Advanced Optical Imaging Technologies II, 111860J (19 November 2019); https://doi.org/10.1117/12.2539148

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