Computational model of a phased array for image guided pediatric cardiac treatment

A computational model of a planar, phased array transducer is developed to aid in the design of an high intensity, focused ultrasound transducer for the noninvasive treatment of congenital heart disease in newborns. The aim is to predict the size, shape and temperature of the high-intensity focal region, and acoustic artifacts surrounding the focal area, created by a transducer. Acoustic intensity fields are calculated and mapped by numerically integrating a form of the Rayleigh-Sommerfeld integral. The resulting temperature field is predicted by the Pennes bio-heat transfer equation by implementing a 3-dimensional finite difference method algorithm.