Ultrasound : modulated optical tomography /
Ultrasound-modulated optical tomography in biological tissue was studied both theoretically and experimentally. The propagation of polarized light in turbid media was simulated by Monte-Carlo method to understand the light-tissue interaction. The Mueller matrix and the degree of polarization (DOP)...
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| Format: | Thesis Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
2000.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=727847601&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | Ultrasound-modulated optical tomography in biological tissue was studied both theoretically and experimentally. The propagation of polarized light in turbid media was simulated by Monte-Carlo method to understand the light-tissue interaction. The Mueller matrix and the degree of polarization (DOP) of output light were calculated. Monte-Carlo technique was also used to study ultrasound-modulated optical tomography. In the simulation, photons were classified into two categories: AC and DC photons. AC photons pass through the ultrasonic column; DC photons do not pass through the ultrasonic column. Optical speckle field and its effect on the signal-to-noise ratio was studied by a simple model. Source synchronized parallel lock-in was applied to map the 2D ultrasonic field in clear media. Single frequency modulation and frequency-swept modulation were implemented to study ultrasound-modulated optical tomography in biological tissue. Two-dimensional images of chicken breast tissues with buried objects were successfully obtained. |
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| Item Description: | Vita. "Major Subject: Biomedical Engineering". |
| Physical Description: | x, 104 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilm Inc. |
| Bibliography: | Includes bibliographical references (leaves 89-97). |