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- Title
Thermoacoustic and photoacoustic sensing of temperature.
- Authors
Manojit Pramanik; Lihong V. Wang
- Abstract
We present a novel temperature-sensing technique using thermoacoustic and photoacoustic measurements. This noninvasive method has been demonstrated using a tissue phantom to have high temporal resolution and temperature sensitivity. Because both photoacoustic and thermoacoustic signal amplitudes depend on the temperature of the source object, the signal amplitudes can be used to monitor the temperature. A temperature sensitivity of 0.15°Cwas obtained at a temporal resolution as short as 2âs, taking the average of 20 signals. The deep-tissue imaging capability of this technique can potentially lead us to in vivotemperature monitoring in thermal or cryogenic applications.
- Subjects
PHOTOACOUSTIC spectroscopy; TEMPERATURE; DIAGNOSTIC imaging; TEMPERATURE measurements; IMAGING phantoms; MEDICAL imaging systems
- Publication
Journal of Biomedical Optics, 2009, Vol 14, Issue 5, p054024
- ISSN
1083-3668
- Publication type
Article
- DOI
10.1117/1.3247155