Microwave induced thermal acoustic imaging modeling for potential breast cancer detection

In this work, we develop a complete microwave induced thermal acoustic imaging (TAI) model for potential biomedical imaging applications. Acoustic pressure generated by spherical breast tumor target is investigated by finite-difference time-domain (FDTD) simulations of the electromagnetic (EM) and acoustic models. Simulation results achieve quantitative relationship between the input power and the output acoustic pressure. Microwave frequency dependence of the acoustic pressure is established in a broadband frequency range. This model will enable design and optimization of microwave induced thermal acoustic imaging and spectroscopy.