Non-linear modelling of breast tissue.
Math Med Biol
; 24(3): 327-45, 2007 Sep.
Article
en En
| MEDLINE
| ID: mdl-17890760
ABSTRACT
Previous approaches to modelling the large deformation of breast tissue, as occurs, e.g. in imaging using magnetic resonance imaging or mammography, include using linear elasticity and pseudo-non-linear elasticity, in which case the non-linear deformation is approximated by a series of small linear isotropic deformations, with the (constant) Young's modulus of each linear deformation an exponential function of the total non-linear strain. In this paper, these two approaches are compared to the solution of the full non-linear elastic problem for tissue with an exponential relationship between stress and strain. Having formulated each model and related the coefficients between the models, numerical simulations are performed on a block of incompressible material. These demonstrate that the simpler models may not be appropriate even in the case of modelling deformations of the human breast under gravity.
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Base de datos:
MEDLINE
Asunto principal:
Mama
/
Modelos Biológicos
Idioma:
En
Revista:
Math Med Biol
Asunto de la revista:
BIOLOGIA
/
MEDICINA
Año:
2007
Tipo del documento:
Article