Real-time temperature monitoring during radiofrequency treatments on ex-vivo animal model by fiber Bragg grating sensors

Analysis and Design of Chirped Fiber Bragg Grating for Temperature Sensing for Possible Biomedical Applications

“…Experiments on ex-vivo animal kidney and liver were conducted and a real time, multipoint measurement with a temperature resolution of 0.1°C and a spatial resolution of 5 mm was achieved [10], [22]. Another study was carried out on the application of two FBG arrays placed close to the RF applicator and over the sub-lethal isotherm [23], [24]. Comparisons between the measurements of these two arrays, positioned in different positions after several RF discharges, were made.…”

Computational analysis of linear energy modulation for laser thermal coagulation

“…Therefore, planning and monitoring techniques have been increasingly proposed to predict and manage the temperature development and thermal coagulated volumes during the treatment. These techniques may be divided into two groups: invasiveness including thermistor, and thermocouple, fiber optic sensors [19][20][21][22], and non-invasiveness including magnetic resonance imaging (MRI), computed topography (CT), and ultrasound (US)-based thermometry [8,23,24]. However, thermocouples may absorb the light due to their metallic materials while fiber optic sensors are expensive and sensitive to the tissue strain (i.e., movement of organs due to respiration), leading to overestimation during the measurement.…”

Thermal Therapy Modalities for Cancer Treatment: A Review and Future Perspectives

“…This approach has been widely used during the last decade. Adding to this, the efficacy of using optical sensors for monitoring the temperature diffusion during a LA was recently demonstrated by many studies [92][93][94][95]. In 2017, Gassino et al developed a fully optical system for Tumor LA with an optical probe equipped with temperature real-time measurement using sensors based on Fiber Bragg Gratings (FBGs) [96].…”