Silver Halide Fiber Allows a Real Time Monitoring of the High-Resolution Thermal Image During the Radiofrequency Ablation (RFA)

Thermal injury is the most important mechanism of lesion formation during radiofrequency catheter ablation procedures. Irreversible tissue injury requires heating to approximately 50 °C. Temperatures above 100 °C result in coagulum formation. As temperature plays a major role during radiofrequency catheter ablation procedures, temperature monitoring has been recommended as a tool to help catheter ablation procedures. The results of recent clinical studies show that electrode temperatures do not vary at successful and failed ablation sites; electrode temperature does not predict or remove the possibility of arrhythmia recurrence [1].

Development of innovative fibers for mid-IR spectral range paves way for a number of promising fiber applications ranging from 2 to 18 µm. Many years of art photonics’ research and development for reliable IR-fiber technologies resulted in the final selection of the main IR-materials suitable for production of mid IR-fibers of optical performance acceptable for pragmatic applications.