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Proceedings Paper

Iterative image reconstruction in photoacoustic tomography using Kaiser-Bessel windows
Author(s): Robert W. Schoonover; Kun Wang; Mark A. Anastasio
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Paper Abstract

Iterative image reconstruction algorithms for photoacoustic computed tomography (PACT) have the ability to improve image quality over analytic algorithms due to their ability to mitigate artifacts from incomplete data, incorporate the relevant imaging physics, and model the instrument response. In this work, Kaiser-Bessel functions are employed as the basis functions in an iterative reconstruction algorithm for PACT. Kaiser-Bessel functions, or blobs, can be made arbitrarily smooth (differentiable to arbitrary order), have finite spatial support, and can be made quasi-bandlimited in the spatial Fourier domain. Closed-form solutions exist in the time-domain and the temporal-frequency domain for the pressure signal generated by blobs.

Paper Details

Date Published: 4 March 2013
PDF: 9 pages
Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85814X (4 March 2013); doi: 10.1117/12.2009027
Show Author Affiliations
Robert W. Schoonover, Washington Univ. in St. Louis (United States)
Kun Wang, Washington Univ. in St. Louis (United States)
Mark A. Anastasio, Washington Univ. in St. Louis (United States)

Published in SPIE Proceedings Vol. 8581:
Photons Plus Ultrasound: Imaging and Sensing 2013
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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