DISTRIBUTED SENSING NETWORK ENABLED BY HIGH-SCATTERING MGO-DOPED OPTICAL FIBERS FOR 3D TEMPERATURE MONITORING OF THERMAL ABLATION IN LIVER PHANTOM

Abstract

Thermal ablation is achieved by delivering heat directly to tissue through a minimally invasive applicator. The therapy requires a temperature control between 50–100 ◦C since the mortality of the tumor is directly connected with the thermal dosimetry. Existing temperature monitoring techniques have limitations such as single-point monitoring, require costly equipment, and expose patients to X-ray radiation. Therefore, it is important to explore an alternative sensing solution, which can accurately monitor temperature over the whole ablated region. The work aims to propose a distributed fiber optic sensor as a potential candidate for this application due to the small size, high resolution, bio-compatibility, and temperature sensitivity of the optical fibers....