Photoacoustic assay and imaging system
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United States of America Patent
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app pub date -
Oct 4, 2004
filing date -
Aug 9, 2001
priority date (Note) -
Abandoned
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Abstract
A method for assaying a component of a localized region of interest in a body comprising: illuminating the region with at least one pulse of radiation having a wavelength at which the radiation is absorbed by the component to generate a change in an acoustic property of the region; transmitting ultrasound so that it is incident on the region; measuring at least one effect of the change on the incident ultrasound; using the measured at least one effect to determine an absorption coefficient for the radiation in the region; and using the determined absorption coefficient to determine concentration of the component in the region.
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