Modeling of Acoustic and Thermal Distributions Produced in a Rat Head by Bi-Transducers Focused Ultrasound

The use of ultrasound has results with advantages for clinical applications. It is possible to made computerized simulations by different methods that save resources and time for many investigation groups. The Finite Element Method (FEM) has been employed in different software's for solving real problems by the solution of differential equations. In the acoustic area, different solutions have been developed for therapeutic and clinical problems. This paper presents a simulation by the Finite Element Method of an emission system composed by two concave transducers with a work frequency of 1.7 MHz each. An analysis of acoustic propagation and thermal distribution in soft tissue of a rat brain was made. The results obtained were obtained for the best-case of work frequency for both transducers with an acoustic propagation and thermal distribution minimum in the tissue of the brain. This is a first approximation of our investigation group.