Energy deposition patterns in the breast at 1064 nm for photoacoustic ultrasound

C. Robert Appledorn; Robert A. Kruger; Pingyu Liu; Yuncai Fang

doi:10.1117/12.237829

11 April 1996 Energy deposition patterns in the breast at 1064 nm for photoacoustic ultrasound

C. Robert Appledorn, Robert A. Kruger, Pingyu Liu, Yuncai Fang

Proceedings Volume 2708, Medical Imaging 1996: Physics of Medical Imaging; (1996) https://doi.org/10.1117/12.237829
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

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.

Citation Download Citation

C. Robert Appledorn, Robert A. Kruger, Pingyu Liu, and Yuncai Fang "Energy deposition patterns in the breast at 1064 nm for photoacoustic ultrasound", Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); https://doi.org/10.1117/12.237829

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