Share Email Print
cover

Proceedings Paper

Image reconstruction from photoacoustic pressure signals
Author(s): Pingyu Liu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Photoacoustic imaging theory is presented based on fundamental physical processes involved in photoacoustic phenomena. Excessive pressure is used to characterize the photoacoustic signal. A solution to photoacoustic pressure derived for liquids is investigated under a rapid heating condition. Photoacoustic image reconstruction theory is proposed for short, square heating pulses. The limitation of the reconstruction theory is discussed. Relationship of the photoacoustic image reconstruction and the Radon transform is presented. The local radiation absorption energy density is determined by the reconstruction theory for three- and two- dimensional cases and for complete or partial data acquisition. The accurate solution is an infinite series. The general formulas of the zero- and first order approximations for three- and two-dimensional cases are provided. A computer simulation for a two-dimensional case exhibits good agreement between the first order approximation and true value.

Paper Details

Date Published: 7 May 1996
PDF: 12 pages
Proc. SPIE 2681, Laser-Tissue Interaction VII, (7 May 1996); doi: 10.1117/12.239585
Show Author Affiliations
Pingyu Liu, Indiana Univ. School of Medicine (United States)


Published in SPIE Proceedings Vol. 2681:
Laser-Tissue Interaction VII
Steven L. Jacques, Editor(s)

© SPIE. Terms of Use
Back to Top