Open AccessCharacterization of the mechanical properties of resected porcine organ tissue using optical fiber photoelastic polarimetry
Author(s) -
Alexa W. Hudnut,
Behzad Babaei,
Sonya Liu,
Brent K. Larson,
Shan M. Mumenthaler,
Andrea M. Armani
Publication year - 2017
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.8.004663
Subject(s) - polarimetry , viscoelasticity , materials science , photoelasticity , elasticity (physics) , biomedical engineering , young's modulus , optical fiber , collagen fiber , elastic modulus , optics , composite material , anatomy , medicine , physics , scattering , solid mechanics
Characterizing the mechanical behavior of living tissue presents an interesting challenge because the elasticity varies by eight orders of magnitude, from 50Pa to 5GPa. In the present work, a non-destructive optical fiber photoelastic polarimetry system is used to analyze the mechanical properties of resected samples from porcine liver, kidney, and pancreas. Using a quasi-linear viscoelastic fit, the elastic modulus values of the different organ systems are determined. They are in agreement with previous work. In addition, a histological assessment of compressed and uncompressed tissues confirms that the tissue is not damaged during testing.