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Temperature mapping using photoacoustic and thermoacoustic tomography

Ke, Haixin and Erpelding, Todd N. and Jankovic, Ladislav and Wang, Lihong V. (2012) Temperature mapping using photoacoustic and thermoacoustic tomography. In: Photons Plus Ultrasound: Imaging and Sensing 2012. Proceedings of SPIE. No.8223. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 82230T. ISBN 9780819488664.

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Photoacoustic (PA) and thermoacoustic (TA) effects are based on the generation of acoustic waves after tissues absorb electromagnetic energy. The amplitude of the acoustic signal is related to the temperature of the absorbing target tissue. A combined photoacoustic and thermoacoustic imaging system built around a modified commercial ultrasound scanner was used to obtain an image of the target's temperature, using reconstructed photoacoustic or thermoacoustic images. To demonstrate these techniques, we used photoacoustic imaging to monitor the temperature changes of methylene blue solution buried at a depth of 1.5 cm in chicken breast tissue from 12 to 42 °C. We also used thermoacoustic imaging to monitor the temperature changes of porcine muscle embedded in 2 cm porcine fat from 14 to 28 °C. The results demonstrate that these techniques can provide noninvasive real-time temperature monitoring of embedded objects and tissue.

Item Type:Book Section
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Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:Photoacoustic tomography, thermoacoustic tomography, temperature imaging
Series Name:Proceedings of SPIE
Issue or Number:8223
Record Number:CaltechAUTHORS:20180918-140710150
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Official Citation:Haixin Ke, Haixin Ke, Todd N. Erpelding, Todd N. Erpelding, Ladislav Jankovic, Ladislav Jankovic, Lihong V. Wang, Lihong V. Wang, } "Temperature mapping using photoacoustic and thermoacoustic tomography", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 82230T (23 February 2012); doi: 10.1117/12.909000;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89732
Deposited By: George Porter
Deposited On:19 Sep 2018 21:40
Last Modified:03 Oct 2019 20:18

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