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Correction of microwave-induced thermistor sensor errors.

G M Samaras·S Rosenbloom·A Y Cheung
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Abstract

Accurate and reliable thermometry is essential in the development of microwave-induced hyperthermal cancer therapy. While temperature measurements in strong electromagnetic fields usually require special sensors, this does not hold true for interstitial radiator/sensor systems. Miniature thermistors (with metallic leads) bonded to invasive microwave applicators exhibit a sensor error linearly related to the radiator's transmitted power. This relationship permits thermistor sensor error correction and temperature measurements to within +/- 0.1 degrees C or better. The instrumental methods and empirical validation are presented.

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AnimalsBrainCatsEthanolHot TemperatureHyperthermia, InducedMicrowavesRatsSodium ChlorideThermometersWaterJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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G M Samaras, S Rosenbloom, A Y Cheung. Correction of microwave-induced thermistor sensor errors.. https://doi.org/10.1118/1.595261

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