Enhancement of Dual-Mode Microwave-Ultrasound Imaging of an Experimental Breast Phantom using Radial Basis Functions

An inter-iteration processing technique, in which pulse basis contrast source inversion reconstructions are projected onto a set of chosen basis functions, is applied to a microwave imaging scenario in which ultrasound prior information, obtained from a dual-mode microwave-ultrasound imaging system, is used as a background model. Choosing a set of radial basis functions is shown to improve image quality for an experimental phantom tumour detection problem. Results suggest additional work into customizing the chosen basis for joint ultrasound and microwave biomedical breast imaging.