Share Email Print
cover

Proceedings Paper

Effects of acoustic heterogeneity on the breast thermoacoustic tomography
Author(s): Yuan Xu; Lihong V. Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The effects of wavefront distortions induced by acoustic heterogeneities in breast thermoacoustic tomography (TAT) are studied. First, amplitude distortions are shown to be insignificant for different scales of acoustic heterogeneities. Next, the effects of phase distortions (errors in time-of-flight) in our numerical studies are investigated, and the spreads of point sources and boundaries caused by the phase distortions are studied. After that, a demonstration showing that the blurring of images can be compensated for by using the distribution of acoustic velocity in the tissues in the reconstructions is presented. Last, the differences in the effects of acoustic heterogeneity and the generation of speckles in breast TAT and breast ultrasound imaging are discussed.

Paper Details

Date Published: 1 July 2003
PDF: 10 pages
Proc. SPIE 4960, Biomedical Optoacoustics IV, (1 July 2003); doi: 10.1117/12.477784
Show Author Affiliations
Yuan Xu, Texas A&M Univ. (United States)
Lihong V. Wang, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 4960:
Biomedical Optoacoustics IV
Alexander A. Oraevsky, Editor(s)

© SPIE. Terms of Use
Back to Top