Low-Complexity Amplitude-Only Breast Imaging Technique

A low-cost two-dimensional amplitude-only tomography procedure is analyzed in this work. An iterative phaseless inversion scheme is adopted, based on the contrast source formulation of the electric field integral equation for the transverse magnetic case. The inversion method does not involve a phase retrieval stage, thus resulting into a one-step reconstruction approach. The proposed strategy is tested on simple and more realistic numerical breast models, while the forward model is developed with a conjugate-gradient Fast Fourier Transform approach. Furthermore, the design of the required acquisition setup is discussed, as a first step towards an experimental validation of the proposed phaseless tomography approach.