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We develop a biomechanical model of an isolated stellate breast tumour under mammographic compression forces for a range of reported mechanical properties, both linear elastic and hyperelastic. We also introduce different volumes of increased density/stiffness around the tumour as well as a solid pressure effect. We show that each of these issues--well known to clinicians but ignored to date in models--has a non-negligible effect on stresses and strains/deformations.

Original publication




Journal article


Phys Med Biol

Publication Date





631 - 648


Algorithms, Biomechanical Phenomena, Breast, Breast Neoplasms, Collagen, Computer Simulation, Diagnostic Imaging, Elasticity, Female, Finite Element Analysis, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Mammography, Models, Anatomic, Models, Theoretical, Stress, Mechanical