title: Modeling of the dielectric properties of trabecular bone samples at microwave frequency.
abstract: In this paper, the dielectric properties of human trabecular bone are evaluated under physiological condition in the microwave range. Assuming a two components medium, simulation and experimental data are presented and discussed. A special experimental setup is developed in order to deal with inhomogeneous samples. Simulation data are obtained using finite difference time domain from a realistic sample. The bone mineral density of the samples are also measured. The simulation and experimental results of the present study suggest that there is a negative relation between bone volume fraction (BV/TV) and permittivity/conductivity: the higher the BV/TV, the lower the permittivity/conductivity. This is in agreement with the recently published in vivo data.
authors.affiliation: Instituto de Física de Líquidos y Sistemas Biológicos (CONICET), Calle 59 No 789, B1900BTE, La Plata, Argentina, rirastorza@iflysib.unlp.edu.ar.
authors.forename: Ramiro M
authors.initials: RM
authors.lastname: Irastorza
authors.forename: Eugenia
authors.initials: E
authors.lastname: Blangino
authors.forename: Carlos M
authors.initials: CM
authors.lastname: Carlevaro
authors.forename: Fernando
authors.initials: F
authors.lastname: Vericat
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003198:Computer Simulation; D004553:Electric Conductivity; D005260:Female; D005270:Femur Head / Q000502:physiology*; D006801:Humans; D008297:Male; D008872:Microwaves; D014054:Tomography / Q000379:methods*