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Proceedings Paper

Thermal contours from magnetic resonance images of laser irradiated gels
Author(s): Stephen G. Hushek; Paul R. Morrison; Gilberto E. Kernahan; Marvin P. Fried; Ferenc A. Jolesz
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Paper Abstract

The ability of MRI to non-invasively monitor energy deposition with high spatial and temporal resolution provides the critical feedback required to make laser therapy procedures safe and efficacious. We have previously proposed the use of polyacrylamide gelatin as a phantom material whose optical and MR properties can be controlled independently by adding different dopants to the base gel. We have also begun to investigate the most effective imaging strategies for measuring temperature variations within this material. In this paper we further characterize the gels, delineate the temperature dependance of their MR properties and show how imaging can be used to determine thermal contours within an interstitially laser-irradiated gel.

Paper Details

Date Published: 1 February 1994
PDF: 8 pages
Proc. SPIE 2082, Quantification and Localization Using Diffuse Photons in a Highly Scattering Medium, (1 February 1994); doi: 10.1117/12.243394
Show Author Affiliations
Stephen G. Hushek, Massachusetts Institute of Technology (United States)
Paul R. Morrison, Harvard Medical School (United States)
Gilberto E. Kernahan, Harvard Medical School and Brigham and Women's Hospital (United States)
Marvin P. Fried, Harvard Medical School (United States)
Ferenc A. Jolesz, Brigham and Women's Hospital (United States)

Published in SPIE Proceedings Vol. 2082:
Quantification and Localization Using Diffuse Photons in a Highly Scattering Medium
Britton Chance; David T. Delpy; Marco Ferrari; Martin J. C. van Gemert; Gerhard J. Mueller; Valery V. Tuchin, Editor(s)

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