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Proceedings Article

Measurement of Grüneisen parameter of tissue by photoacoustic spectrometry

[+] Author Affiliations
Da-Kang Yao, Lihong V. Wang

Washington Univ. in St. Louis (United States)

Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 858138 (March 4, 2013); doi:10.1117/12.2004117
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From Conference Volume 8581

  • Photons Plus Ultrasound: Imaging and Sensing 2013
  • Alexander A. Oraevsky; Lihong V. Wang
  • San Francisco, California, USA | February 02, 2013

abstract

The Grüneisen parameter of tissue is a constitutive parameter in photoacoustic tomography. Here, we applied photoacoustic spectrometry (PAS) to directly measure the Grüneisen parameter. In our PAS system, laser pulses at wavelengths between 460 and 1600 nm were delivered to tissue samples, and photoacoustic signals were detected by a 20 MHz flat water-immersion ultrasonic transducer. By fitting photoacoustic spectra to light absorption spectra, we found that the Grüneisen parameter was 0.73 for porcine subcutaneous fat tissue, and 0.15 for oxygenated bovine red blood cells at room temperature (24°C). © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Da-Kang Yao and Lihong V. Wang
" Measurement of Grüneisen parameter of tissue by photoacoustic spectrometry ", Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 858138 (March 4, 2013); doi:10.1117/12.2004117; http://dx.doi.org/10.1117/12.2004117


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