Experimental Evaluation of RFID-Based Thermal Monitoring Sheet (R-TMS) for Superficial Hyperthermia Treatment

Using microwave hyperthermia as an anticancer treatment can enhance the effectiveness of radiation therapy and chemotherapy. This approach involves the application of high-power electromagnetic fields (EM) within the tumor region. Despite its potential benefits, a notable drawback is the risk of developing localized hot spots on the patient's skin due to the interaction with EM fields. To address this concern, the Authors introduced an epidermal RadioFrequency IDentification (RFID) sensor grid for wireless and cost-effective skin temperature monitoring during treatment. This paper presents a comprehensive validation of the entire system, with a particular focus on the initial findings related to thermal characterization. Measurements showed that the R-TMS can accurately track the time evolution of temperature patterns without affecting the medical treatment. The temperature increase achieved in the target region (16 °C in 50 minutes) matches that obtained under reference conditions.