Investigation of bovine bone by resonant ultrasound spectroscopy and transmission ultrasound

Abstract

The method of resonant ultrasonic spectroscopy (RUS) was evaluated for bovine bone and compared with the traditional wave transmission ultrasound method. In RUS, the resonance structure of a cubic or rectangular specimen is scanned. For some low-damping materials, a single measurement yields sufficient resonant frequencies to determine all of the anisotropic elastic constants. Bone has a high viscoelastic damping at ultrasonic frequency. Consequently, resonance peaks of a cubic specimen tend to overlap. Therefore, the usual RUS method must be modified for application to bone; even so, one cannot obtain all the elastic constants. Concurrent studies with transmission ultrasound were conducted. Results were used to generate a map of the elastic moduli vs position along the bone axis. Stiffness was greatest in the mid part of the bovine femur.

Correlation between longitudinal, circumferential, and radial moduli in cortical bone: Effect of mineral content

“…It is noted that the average impedances, densities, velocities and moduli for control plexiform bovine bone in this study are slightly over the range obtained by others (Katz et al, 2005;Lee et al, 2002;Yamato et al, 2006), but of the same magnitude as others (Maharidge, 1984).…”

Assessment of anisotropic elasticity of small bone samples with resonant ultrasound spectroscopy: Attenuation does not prevent the measurements

“…Ultrasonic attenuation was also measured for shear and compressional waves. Properties of the bone mimetic material are close to those of real bone in terms of elasticity [9] and attenuation (in the range obtained in [3] for bovine cortical bone). This material, which is a good substitute for bone, was used instead of real bone because of the possibility to prepare several samples of various shapes with the same elastic properties.…”

“…However, previous attempts of applying the RUS method to bone were not successful [3] due to a high mechanical damping which causes resonance peaks to overlap.…”

“…Changing the sample shape affects Eq. (3). It follows that the dimensions of the sample can be optimized in order to maximize the influence of each coefficients in the resonance spectrum.…”

Comparison of the Influence of Phospholipid-Coated Porous Ti-6Al-4V Material on the Osteosarcoma Cell Line Saos-2 and Primary Human Bone Derived Cells

“…The results of tensile, compression, and resonant ultrasound spectroscopy (RUS) tests are displayed in Palatino Linotype, bold, and in italic font, respectively. [13][14][15]; b [16,17]; c [18]; d [19]; e [15]. CYS: compressive yield strength, E: Young's modulus, ε f : elongation to fracture, ε c : compressibility, UCS: ultimate compression strength, UTS: ultimate tensile strength and YS: yield strength.…”