The role of transducer geometry in reducing the post target bone heating during ultrasound surgery

Undesired bone heating during ultrasound surgery is one of the operation constraints decreasing the treatment efficacy. Through choosing appropriate transducer geometry, one may be able to decrease the generated temperature at the bone and in the beam path. In this study, the considered model consisted of a transducer, an intervening tissue and a bone located past the tissue. By applying finite element method the Helmholtz and Bioheat equations were solved to calculate, respectively, the pressure field and the temperature generated throughout the tissue and the bone. The sample target in the model was located at…