Nearly incompressible transverse isotropic (NITI) model of soft tissue elasticity

Ivan M. Pelivanov; Maju Kuriakose; Hong-Cin Liou; Mitchell A. Kirby; Matthew O'Donnell

doi:10.1117/12.2608979

2 March 2022 Nearly incompressible transverse isotropic (NITI) model of soft tissue elasticity

Ivan M. Pelivanov, Maju Kuriakose, Hong-Cin Liou, Mitchell A. Kirby, Matthew O'Donnell

Proceedings Volume PC11962, Optical Elastography and Tissue Biomechanics VIV; PC119620D (2022) https://doi.org/10.1117/12.2608979
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

Recent advances in dynamic OCE have resulted in tools that can generate/track sub-mm wavelength mechanical waves in tissue. However, reconstructing material elasticity from measured wavefields needs an appropriate model accounting for tissue anisotropy, structure and geometry. We assume that tissues consisting of collagen fibers can be locally described with a model of a nearly incompressible transverse isotropic (NITI) medium using three elastic parameters to describe shear and tensile behavior. Examples of NITI media are discussed and the problem of inversion of moduli from bulk shear, Rayleigh and guided waves is considered.

Conference Presentation

Citation Download Citation

Ivan M. Pelivanov, Maju Kuriakose, Hong-Cin Liou, Mitchell A. Kirby, and Matthew O'Donnell "Nearly incompressible transverse isotropic (NITI) model of soft tissue elasticity", Proc. SPIE PC11962, Optical Elastography and Tissue Biomechanics VIV, PC119620D (2 March 2022); https://doi.org/10.1117/12.2608979

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