A quantitative ultrasound model of the bone with blood as the interstitial fluid
A variant of the Biot-Johnson model of a poroelastic material is investigated to see if the viscosity of the interstitial fluid is significant in the ultrasound insonification of non-defatted cancellous bone. The equations of motion are derived using a Lagrangian formulation. Numerical experiments are performed on various bone samples. It is shown that the viscosity of the interstitial fluid does indeed signify in the ultrasound frequency range. (C) 2011 Elsevier Ltd. All rights reserved.
ultrasound poroelasticity shear-thinning pore fluid