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Published September 17, 1999 | Published
Book Section - Chapter Open

Combining sound and light in scattering media


Two imaging techniques combining ultrasound and light are reviewed. The motivation is to combine the advantages of optical information and acoustic imaging resolution. The first technique is sonoluminescence tomography, where a sonoluminescence signal generated internally in the media by continuous-wave ultrasound is used. 2D images can be produced for objects embedded in turbid media by raster scanning the media. The second technique is ultrasound-modulated optical tomography, where a frequency-swept ultrasonic wave was used to modulate the laser light passing through a scattering medium. Multiple 1D images obtained at various positions perpendicular to the ultrasonic axis were composed to obtain a 2D tomographic image of the medium.

Additional Information

© 1999 Society of Photo-Optical Instrumentation Engineers (SPIE). This project was sponsored by the National Institutes of Health grants (R29 CA68562, R01 CA71980, R21 CA83760) and by the National Science Foundation grant (BES-9734491).

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