Objective: In this paper we present a study of a novel method to noninvasively monitor temperature during thermotherapy for instance in cancer treatment using M-sequence radar technology. The main objective is to investigate the temperature dependence of reflectivity in UWB radar signal in gelatine phantoms using electrically small antennas. Methods: The phantom was locally heated up, and consequently changes of signal reflectivity were observed. Results: An approximate linear relationship between temperature change and reflectivity variations was formulated. To show the potential of this approach we used an M-sequence MIMO radar system. The system was tested on breast-shape phantom with local heating by circulating water of controlled temperature. Delay and Sum algorithm was implemented for two-dimensional imaging. Significance: The article is a study of temperature measurement using UWB radar system for possible usage in thermotherapy.
CITATION STYLE
Fiser, O., Helbig, M., Sachs, J., Ley, S., Merunka, I., & Vrba, J. (2018). Microwave non-invasive temperature monitoring using UWB radar for cancer treatment by hyperthermia. Progress in Electromagnetics Research, 162, 1–14. https://doi.org/10.2528/pier17111609
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