A technique for monitoring the light dosage at photodynamic session with a multichannel fiber optic sensor

Abstract

A technique for monitoring the light dosage during photodynamic therapy of organs in the abdominal cavity with a four-channel fiber-optic sensor has been developed. In the model conditions, temporal and distance dependences of light doses for working variants of therapeutic light field under laser irradiation and for background illumination under standard operating conditions were obtained. The developed computer program for processing obtained measurements allows to digitally display light dose values in real time at four selected points of the operating field with automatic consideration of background irradiation from external sources.