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Proceedings Paper

Energy deposition patterns in the breast at 1064 nm for photoacoustic ultrasound
Author(s): C. Robert Appledorn; Robert A. Kruger; Pingyu Liu; Yuncai Fang
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Paper Abstract

The simulation of energy deposition within the compressed human breast following its illumination with a short duration pulse of near-infrared light is examined. Different scattering and absorption conditions are studied: homogeneous scattering with homogeneous absorption, homogeneous scattering with heterogeneous absorption (i.e., the introduction of an abnormality), and heterogeneous scattering with homogeneous absorption. Some of the results were used in a companion paper for the simulation of photoacoustic ultrasonic waves resulting from the quick absorption of energy by a region exhibiting increased differential absorption over that of immediately adjacent areas. A method for simulating heterogenous scattering properties is introduced. It is observed that changes in the scattering coefficient within a region do not influence the absorption patterns of the region.

Paper Details

Date Published: 11 April 1996
PDF: 10 pages
Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); doi: 10.1117/12.237829
Show Author Affiliations
C. Robert Appledorn, Indiana Univ. Medical Ctr. (United States)
Robert A. Kruger, Indiana Univ. Medical Ctr. (United States)
Pingyu Liu, Indiana Univ. Medical Ctr. (United States)
Yuncai Fang


Published in SPIE Proceedings Vol. 2708:
Medical Imaging 1996: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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