In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 131, No. 1 ( 2012-01-01), p. EL67-EL73
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)=α0+α1fn, the exponent n was found to be 1.65. In contrast, the average backscatter coefficient was fitted to a power law η(f)=η1fn and the exponent n was measured as 3.25. The apparent bone density was significantly correlated with the parameter α1 (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).
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
2012
detail.hit.zdb_id:
1461063-2
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