Published April 24, 1996
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Ultrasound-modulated optical tomography for dense turbid media
Chicago
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Abstract
Continuous-wave ultrasonic modulation of scattered laser light has been used to image objects in tissue-simulating turbid media for the first time. We hypothesized that the ultrasound wave focused into the turbid media modulates the laser light passing through the ultrasonic focal zone. The modulated laser light collected by a photomultiplier tube reflects the local mechanical and optical properties in the focal zone. Buried objects in 5-cm thick tissue phantoms (absorption coefficient µ_a = 0.1 cm^(-1), reduced scattering coefficient µ_s' = 10 cm^(-1)) were located with millimeter resolution by scanning and detecting alterations of the ultrasound-modulated optical signal.
Additional Information
© 1996 Society of Photo-Optical Instrumentation Engineers (SPIE). The project was sponsored in part by The University of Texas M.D. Anderson Cancer Center grant, The Whitaker Foundation grant, Department of Energy grant, and National Institutes of Health grant.Attached Files
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Additional details
- Eprint ID
- 91619
- Resolver ID
- CaltechAUTHORS:20181207-161549324
- University of Texas
- Whitaker Foundation
- Department of Energy (DOE)
- NIH
- Created
-
2018-12-11Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 2676