Method and apparatus for non-contacting identification of the te

Details Method and apparatus for non-contacting identification of the te Method and apparatus for non-contacting identification of the te

1987-01-09

1989-01-17

Jaworski, Francis J.

Surgery

Truss

Pad

128804, 128399, 128736, A61B 505

Patent

active

047982098

ABSTRACT:
A method and apparatus for undertaking a non-contacting measurement of the three-dimensional temperature distribution in a non-uniform examination subject direct microwave radiation at the examination subject, detect the three-dimensional phase and amplitude of microwave radiation which is attenuated and scattered by the examination subject, and calculate the three-dimensional dielectric constant distribution in the examination subject on the bases of the detected phase and amplitude values. In a separate step the characteristic thermal radiation of object is measured, too. The three-dimensional temperature distribution of the examination subject is then calculated from both the three-dimensional dielectric constant distribution data and the characteristic thermal readiation data of a selected location.

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"Applications de la Radiometrie Microonde en Genie Biomedical," Leroy et al., L'Onde Electrique, Jan.-Feb. 1985, vol. 65, No. 1, pp. 9-15.
"Inversion of Radiometric Data from Biological Tissue by an Optimisation Method," Schaller, Electronic Letters Apr. 26, 1984, vol. 20, No. 9, pp. 380-382.
"Aperture Syntheses Thermography--A New Approach to Passive Microwave Temperature Measurements in the Body," Haslem et al., IEEE Trans. on Microw. Theory & Tech., vol. MTT-32, No. 8, Aug. 1984, pp. 829-834.

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