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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Graphics processing unit accelerating compressed sensing photoacoustic computed tomography with total variation.
    Author: Gao M, Si G, Bai Y, Wang LV, Liu C, Meng J.
    Journal: Appl Opt; 2020 Jan 20; 59(3):712-719. PubMed ID: 32225199.
    Abstract:
    Photoacoustic computed tomography with compressed sensing (CS-PACT) is a commonly used imaging strategy for sparse-sampling PACT. However, it is very time-consuming because of the iterative process involved in the image reconstruction. In this paper, we present a graphics processing unit (GPU)-based parallel computation framework for total-variation-based CS-PACT and adapted into a custom-made PACT system. Specifically, five compute-intensive operators are extracted from the iteration algorithm and are redesigned for parallel performance on a GPU. We achieved an image reconstruction speed 24-31 times faster than the CPU performance. We performed in vivo experiments on human hands to verify the feasibility of our developed method.
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