Two-Dimensional Time-Domain Inverse Scattering for Quantitative Analysis of Breast Composition
IEEE Transactions on Biomedical Engineering
II. METHODS T M N Q(p) = 1J; [;IVm(p;rn,t)-vm(rn,tWdt (I) technique -  , broadband microwave signals are utilized to solve the inverse scattering problem in the time-domain. By utilizing a tomographic approach, the FBTS technique has the potential to generate images that provide useful quantitative information about the internal structure of the breast, such as the shape and composition of fibroglandular tissue regions. Additionally, the use of a broadband signal provides a large amount
... des a large amount of scattering information about the breast and should allow for stable reconstructions of relatively high-resolution images. Previous investigations of the FBTS technique presented by the authors -, as well as similar studies by Fhager et al.  have demonstrated the efficacy of time-domain inverse scattering for reconstructing simple objects such as cylinders and spheres in a breast-like configuration. An investigation by Winters et al.  demonstrated that a similar time-domain approach could be utilized to predict average electrical property parameters of the skin and normal tissue regions of a realistic, MRI-derived breast model in 2-D (as a preprocessing technique for radar-based imaging). In this paper, the 2-D FBTS technique described in  is extended to a similarly realistic breast model to demonstrate the efficacy of FBTS for tumor detection and quantitative analysis of the breast's internal composition.