Title :
Use of ultrasound attenuation and velocity to estimate Young´s modulus in trabecular bone
Author :
Grimm, Michele J. ; Williams, John L.
Author_Institution :
Dept. of Bioeng., Pennsylvania Univ., Philadelphia, PA, USA
Abstract :
Measurements were made of ultrasound transmission velocity (UTV) and attenuation (BUA) in cores of human trabecular bone. The Young´s modulus and apparent density were also determined for each specimen. Analysis of the correlation between the ultrasonic parameters and the mechanical property was conducted. The highest coefficient of determination was found for a linear combination model of UTV and BUA. It is hypothesized that the improvement in the predictive ability of this model in comparison to the univariate models is due to the two ultrasonic parameters measuring different components of the trabecular bone
Keywords :
Young´s modulus; biomechanics; biomedical measurement; biomedical ultrasonics; bone; elastic moduli measurement; ultrasonic absorption; ultrasonic materials testing; ultrasonic velocity; 1 MHz; 232 to 584 kHz; Young´s modulus; apparent density; human bone; linear combination model; osteoporosis development; predictive ability; trabecular bone; ultrasound attenuation; ultrasound transmission velocity; univariate models; Attenuation; Cancellous bone; Frequency; Humans; Orthopedic surgery; Osteoporosis; Predictive models; Spine; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Bioengineering Conference, 1993., Proceedings of the 1993 IEEE Nineteenth Annual Northeast
Conference_Location :
Newark, NJ
Print_ISBN :
0-7803-0925-1
DOI :
10.1109/NEBC.1993.404414
