Thermal contours from magnetic resonance images of laser irradiated gels

Stephen G. Hushek; Paul R. Morrison; Gilberto E. Kernahan; Marvin P. Fried; Ferenc A. Jolesz

doi:10.1117/12.243394

1 February 1994 Thermal contours from magnetic resonance images of laser irradiated gels

Stephen G. Hushek, Paul R. Morrison, Gilberto E. Kernahan, Marvin P. Fried, Ferenc A. Jolesz

Proceedings Volume 2082, Quantification and Localization Using Diffuse Photons in a Highly Scattering Medium; (1994) https://doi.org/10.1117/12.243394
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

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.

Citation Download Citation

Stephen G. Hushek, Paul R. Morrison, Gilberto E. Kernahan, Marvin P. Fried, and Ferenc A. Jolesz "Thermal contours from magnetic resonance images of laser irradiated gels", Proc. SPIE 2082, Quantification and Localization Using Diffuse Photons in a Highly Scattering Medium, (1 February 1994); https://doi.org/10.1117/12.243394

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