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Proceedings Paper

Toward artifact-free reconstruction of photoacoustic computed tomography images
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Paper Abstract

As an emerging optical imaging modality, photoacoustic imaging provides optical absorption contrasts and ultrasonic high resolution. Artifacts appearing in photoacoustic computed tomography (PACT) always deteriorate image quality and resolution, and result in confusion of biological information. On the basis of different causing reasons, they are roughly classified as split artifacts and streak artifacts. Here we present an innovative Feature-Coupling (FC) method to weaken split artifacts with joint reconstruction of speed of sound and a new reconstruction algorithm, termed Contamination-Tracing Back-Projection (CTBP), is proposed for the mitigation of streak artifacts. The utility, effectiveness and robustness of our methods were demonstrated using numerical, phantom, and in vivo experiments.

Paper Details

Date Published: 20 November 2019
PDF: 8 pages
Proc. SPIE 11190, Optics in Health Care and Biomedical Optics IX, 111901G (20 November 2019); doi: 10.1117/12.2537524
Show Author Affiliations
Xuanhao Wang, Tsinghua Univ. (China)
Chuangjian Cai, Tsinghua Univ. (China)
Kexin Deng, Tsinghua Univ. (China)
Cheng Ma, Tsinghua Univ. (China)
Beijing National Research Ctr. for Information Science and Technology (China)
Beijing Innovation Ctr. for Future Chip (China)

Published in SPIE Proceedings Vol. 11190:
Optics in Health Care and Biomedical Optics IX
Qingming Luo; Xingde Li; Ying Gu; Yuguo Tang; Dan Zhu, Editor(s)

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