Dynamic color schlieren imaging of Nd:YAG laser-induced temperature distribution in a tissue model: a pilot study (THESIS VERSION)

Abstract

The investigation of spatial temperature distribution in tissue is complicated. Schlieren imaging is a relatively straightforward technique to visualize inhomogeneities in transparent media, such as those caused by temperature gradients. A transparent polyacrylamide gel may serve as a model for laser tissue interaction. Spatial distribution of Nd:YAG laser-induced temperature distribution was investigated in a polyacrylamide gel using a dynamic color schlieren technique, comparing contact and free beam laser exposure. The use of a polyacrylamide gel as a model for canine prostate tissue was investigated.