The heating of tissue by microwave radiation has attained a place of importance in various medical fields such as the treatment of malignancies, urinary retention and hypothermia. Accurate temperature measurements in these treated tissues is important for treatment planning and for the control of the heating process. It is also important to be able to measure spacial temperature distribution in the tissues because they are heated in a non uniform way by the microwave radiation. Fiber optic radiometry makes possible accurate temperature measurement in the presence of microwave radiation and does not require contact with the tissue. Using a IR silver halide fiber optic radiometric temperature sensor we obtained accurate temperature measurements of tissues heated by microwave, enabling us to control the heating process in all regions of the tissue. We also performed temperature mapping of the heated tissues and demonstrated the non-uniform temperature distributions in them.

Date Published: 21 May 1993
PDF: 9 pages
Proc. SPIE 1886, Fiber Optic Sensors in Medical Diagnostics, (21 May 1993); doi: 10.1117/12.144837

Published in SPIE Proceedings Vol. 1886:
Fiber Optic Sensors in Medical Diagnostics
Fred P. Milanovich, Editor(s)