Share Email Print
cover

Proceedings Paper

Simultaneous reconstruction of speed-of-sound and optical absorption properties in photoacoustic tomography via a time-domain iterative algorithm
Author(s): Jin Zhang; Kun Wang; Yongyi Yang; Mark A. Anastasio
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Photoacoustic tomography (PAT) is a hybrid imaging modality that combines the advantages of both optical imaging and ultrasound imaging techniques. Most existing reconstruction algorithms assume the speed-of-sound distribution within the object is homogeneous. In certain practical applications, this assumption may not be valid and will result in conspicuous image artifacts. In this work, we investigate the possibility of simultaneously estimating the speed-of-sound and optical absorption properties from data acquired in a PAT experiment. We propose and numerically implement a time-domain iterative algorithm that can reconstruct both the speed-of-sound and optical absorption distribution, by use of a priori information regarding the geometry of the speed-of-sound map. Computer-simulation results are presented to demonstrate the efficacy of the proposed reconstruction method.

Paper Details

Date Published: 28 February 2008
PDF: 8 pages
Proc. SPIE 6856, Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 68561F (28 February 2008); doi: 10.1117/12.764171
Show Author Affiliations
Jin Zhang, Illinois Institute of Technology (United States)
Kun Wang, Illinois Institute of Technology (United States)
Yongyi Yang, Illinois Institute of Technology (United States)
Mark A. Anastasio, Illinois Institute of Technology (United States)


Published in SPIE Proceedings Vol. 6856:
Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

© SPIE. Terms of Use
Back to Top