Reference state estimation of breast computed tomography for registration with digital mammography

摘要: Understanding the deformation of breast is a fundamental aspect to lesion localization in multi-view and multimodality imaging. Finite element methods (FEMs) are commonly used model process breast. In FEM, ideally reference state with no loading conditions available as starting point then appropriate imaging-modality-based for specific application can be applied state. We propose an iterative method estimate configuration between gravity loaded uncompressed computed tomography (BCT) volume compressed using corresponding digital mammograms (DM) guide. The two plates similar mammographic A DM-like image generated by forward ray-tracing. applies pressure anterior-to-posterior direction uses information from DM geometry measurements converge on estimation compression was studied BCT cases small large sizes densities consisting scattered, heterogeneous extremely dense categories. breasts were assumed composed non-linear materials based Mooney-Rivlin models. effects material properties analyzed. Frechet distance edges performance measure.