Ultrafast filtered back-projection for photoacoustic computed tomography.

ABSTRACT: The filtered back-projection (FBP) algorithm is widely used in photoacoustic computed tomography (PACT) for image reconstruction due to its simplicity and efficiency. Yet, the real-time processing of high-speed PACT data remains challenging for regular FBP implementations. To enhance the reconstruction efficiency of the FBP algorithm, researchers have developed FBP implementations based on the graphics processing units (GPUs). However, existing GPU-accelerated FBP algorithms either sacrifice accuracy for efficiency or are still inefficient for high-speed, real-time PACT imaging. Herein, we report an ultrafast GPU acceleration-based FBP implementation for PACT image reconstruction without sacrificing accuracy. Firstly, the computation complexity of the filtering part of the FBP algorithm is

SUBMITTER: Liu S 

PROVIDER: S-EPMC11828441 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature