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A frequency-domain model-based reconstruction method for transcranial photoacoustic imaging: A 2D numerical investigation.

Publication ,  Journal Article
Park, H; Yao, J; Jing, Y
Published in: Photoacoustics
October 2023

Phase aberration caused by the skull is a major barrier to achieving high quality photoacoustic images of human and non-human primates' brains. To address this issue, time-reversal methods have been used but they are computationally demanding and slow due to relying on solving the full-wave equation. The proposed approach is based on model-based image reconstruction in the frequency-domain to achieve near real-time image reconstruction. The relationship between an imaging region and transducer array elements can be mathematically described as a model matrix and the image reconstruction can be performed by pseudo-inverse of the model matrix. The model matrix is numerically calculated due to the lack of analytical solutions for transcranial ultrasound. However, this calculation only needs to be performed once for a given experimental setup and the same acoustic medium, and is an offline process not affecting the actual image reconstruction time. This non-iterative mode-based method demonstrates a substantial improvement in image reconstruction time, being approximately 18 times faster than the time-reversal method, all while maintaining comparable image quality.

Duke Scholars

Published In

Photoacoustics

DOI

EISSN

2213-5979

ISSN

2213-5979

Publication Date

October 2023

Volume

33

Start / End Page

100561
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Park, H., Yao, J., & Jing, Y. (2023). A frequency-domain model-based reconstruction method for transcranial photoacoustic imaging: A 2D numerical investigation. Photoacoustics, 33, 100561. https://doi.org/10.1016/j.pacs.2023.100561
Park, Hyungjoo, Junjie Yao, and Yun Jing. “A frequency-domain model-based reconstruction method for transcranial photoacoustic imaging: A 2D numerical investigation.Photoacoustics 33 (October 2023): 100561. https://doi.org/10.1016/j.pacs.2023.100561.
Park, Hyungjoo, et al. “A frequency-domain model-based reconstruction method for transcranial photoacoustic imaging: A 2D numerical investigation.Photoacoustics, vol. 33, Oct. 2023, p. 100561. Epmc, doi:10.1016/j.pacs.2023.100561.
Journal cover image

Published In

Photoacoustics

DOI

EISSN

2213-5979

ISSN

2213-5979

Publication Date

October 2023

Volume

33

Start / End Page

100561