Is Single Band Radiometry Adequate for Temperature Monitoring and Control of Superficial Hyperthermia Treatments?

Microwave radiometry has been proposed as an accurate, quick, and painless temperature sensing technique for biological tissue. Advantages include the ability to sense volume-averaged temperatures in subcutaneous tissue non-invasively, rather than with a limited set of point measurements typical of implanted temperature probes. We present a procedure to estimate the maximum temperature from a single radiometric brightness temperature which is based on a numerical simulation of 3-D tissue temperature distributions induced by microwave heating at 915 MHz.