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We develop a large deformations, Finite Elements biomechanical model of a stellate breast tumour, subject to prone to supine (MRI to US) breast deformations. Based on clinical findings, we introduce a volume of increased mammographic density/stiffness around a spiculated tumour, as well as a range of reported mechanical properties, both linear elastic and hyperelastic. This novel model demonstrates that these have a non-negligible effect on stresses and displacements, which, in turn, have implications, for example, in breast registration. We also show that the choice of material properties plays a dramatic effect on the mechanical variables.

Original publication




Conference paper

Publication Date





7249 - 7252


Biomechanical Phenomena, Breast, Breast Density, Breast Neoplasms, Female, Finite Element Analysis, Humans, Imaging, Three-Dimensional, Magnetic Resonance Imaging, Mammary Glands, Human, Mammography, Models, Theoretical, Prone Position, Supine Position, Ultrasonography, Mammary