Acousto-Ultrasonic Characterization of Physical Properties of Human Bones
In this work the Acousto-Ultrasonic (AU) technique was utilized to nondestructively characterize two biological parameters of human bone specimens: the weight and mineral content densities. It has been previously shown that these two parameters have great effect on bone strength, thus by employing the non-invasive AU technique one can obtain vital information about bone strength without using any ionizing radiation. In the present study, the bones were characterized both by common techniques, e.g. γ-rays and AU, and the results of the study indicate that the AU parameter which best correlates with the weight and mineral content densities of human bones was the peak amplitude of the received AU signals. The peak amplitude of the AU signal and the weight density of the bone specimens was found to be linearly related with a coefficient of correlation r = 0.68. The coefficient of linear correlation between the mentioned AU parameter and the mineral content density was r = 0.63. This preliminary study demonstrated the potential of employing the Acousto-Ultrasonic technique as a non-invasive means to determine physical properties of human bones. The results suggest that the peak amplitude of the AU signals can be related to the bone strength.
KeywordsAcoustic Emission Bone Strength Peak Amplitude Acoustic Emission Event Bone Specimen
Unable to display preview. Download preview PDF.
- 2.I. Leichter, G. Hazan, A. Weinreb, E. Loewinger, G. C. Robin, J. Menczel, and M. Makin, Clinic. Ortho. Rel. Research 151:232 (1981).Google Scholar
- 7.J. Rodgers spivnin: “Acoustic Emission Trends 3,” Acoustic Emission Technology Corp., Sacramento (1982).Google Scholar
- 9.I. Leichter, J. Y. Margulies, A. Weinreb, J. Mizrahi, G. C. Robin, B. Conforty, M. Makin, and B. Bloch, Clinic. Ortho. Rel. Research 163:272 (1982).Google Scholar