MRI to X-ray mammography intensity-based registration with simultaneous optimisation of pose and biomechanical transformation parameters.
作者： Thomy Mertzanidou , John Hipwell , Stian Johnsen , Lianghao Han , Bjoern Eiben
DOI: 10.1016/J.MEDIA.2014.03.003
关键词:
摘要: Determining corresponding regions between an MRI and X-ray mammogram is a clinically useful task that challenging for radiologists due to the large deformation breast undergoes two image acquisitions. In this work we propose intensity-based registration framework, where biomechanical transformation model parameters rigid-body are optimised simultaneously. Patient-specific modelling of derived from diagnostic, prone has been previously used task. However, high computational time associated with compression simulation using commercial packages, did not allow optimisation both pose FEM in same framework. We use fast explicit Finite Element (FE) solver runs on graphics card, enabling FEM-based be fully integrated into scheme. The seven degrees freedom, which include initial prior mammographic compression, those model. framework was tested ten clinical cases results were compared against affine model, proposed mean error 11:6 � 3:8 mm CC 11 5:4 MLO view registrations, indicating could tool. 2014 Authors. Published by Elsevier B.V. This open access article under BY license (http://
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