Simulation of photoacoustic signal production in human breast phantoms at 1064 nm

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

doi:10.1117/12.237792

11 April 1996 Simulation of photoacoustic signal production in human breast phantoms at 1064 nm

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

Proceedings Volume 2708, Medical Imaging 1996: Physics of Medical Imaging; (1996) https://doi.org/10.1117/12.237792
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

Abstract

Photoacoustic signals generated by breasts irradiated with short microwave, infrared or optical pulses could be used to detect breast cancer. Since radiation at this spectrum is non-ionizing, the photoacoustic approach provides a special safety feature. The purpose of the paper is to present a means to predict photoacoustic pressure signals for different breast phantoms and irradiation conditions. The photoacoustic wave equation was derived for linear, non-viscous liquid media. The equation was solved assuming uniform acoustic properties in an infinite medium. Compressed breast phantoms were used as the objects of simulation. The spatial dependence of electromagnetic energy absorption was given by another research paper of this conference. The time dependence of the absorption was assumed to be either uniform or bell- shaped. Photoacoustic pressure signals received by transducers at different locations were calculated numerically.

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Pingyu Liu, Robert A. Kruger, C. Robert Appledorn, and Yuncai Fang "Simulation of photoacoustic signal production in human breast phantoms at 1064 nm", Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); https://doi.org/10.1117/12.237792

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KEYWORDS

Tumors

Transducers

Photoacoustic spectroscopy

Breast

Absorption

Chlorine

Natural surfaces

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