title: Frequency-dependent attenuation and backscatter coefficients in bovine trabecular bone from 0.2 to 1.2 MHz.
abstract: The frequency-dependent attenuation and backscatter coefficients were measured in 25 bovine femoral trabecular bone samples from 0.2 to 1.2 MHz. When the average attenuation coefficient was fitted to a nonlinear power law α(f)=α(0)+α(1)f(n), the exponent n was found to be 1.65. In contrast, the average backscatter coefficient was fitted to a power law η(f)=η(1)f(n) and the exponent n was measured as 3.25. The apparent bone density was significantly correlated with the parameter α(1) (0.2-0.7 MHz: r = 0.852, 0.6-1.2 MHz: r = 0.832) as well as the backscatter coefficient (0.5 MHz: r = 0.751, 1.0 MHz: r = 0.808).
authors.affiliation: Department of Physics, Kangwon National University, Chuncheon 200-701, Republic of Korea acustica@kangwon.ac.kr.
authors.forename: Kang
authors.initials: K
authors.lastname: Il Lee
authors.forename: Min
authors.initials: M
authors.lastname: Joo Choi
mesh_terms: D000818:Animals; D015519:Bone Density / Q000502:physiology*; D002417:Cattle; D005269:Femur / Q000502:physiology*; D012542:Scattering, Radiation; D013016:Sound; D013018:Sound Spectrography; D014465:Ultrasonics