The effect of bone structure on ultrasonic attenuation and velocity

The relationship between the structure of bovine cancellous bone, and its ultrasonic propagation parameters is investigated by means of a novel technique involving the application of large static loads, thereby changing the porosity in a controlled manner. The results show that for frequencies in th...

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Published in:Ultrasonics 1992, Vol.30 (6), p.389-395
Main Authors: Tavakoli, M.B., Evans, J.A.
Format: Article
Language:English
Subjects:
Animals
Bone and Bones - diagnostic imaging
bone mineral
Cattle
Femur - diagnostic imaging
In Vitro Techniques
osteoporosis
Porosity
Radiography
ultrasonic scattering
Ultrasonics
Ultrasonography
velocity and attenuation
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description The relationship between the structure of bovine cancellous bone, and its ultrasonic propagation parameters is investigated by means of a novel technique involving the application of large static loads, thereby changing the porosity in a controlled manner. The results show that for frequencies in the range 0.4 to 1 MHz, porosity decreases up to 35% are associated with a reduction in attenuation of up to 500%, whereas the velocity increases by roughly 35% for the same changes. The data taken overall suggest that in determining the ultrasonic attenuation coefficient at these frequencies, the amount of material in a given bone section is significantly less important than the distribution of that material.
doi_str_mv 10.1016/0041-624X(92)90095-4
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subjects Animals
Bone and Bones - diagnostic imaging
bone mineral
Cattle
Femur - diagnostic imaging
In Vitro Techniques
osteoporosis
Porosity
Radiography
ultrasonic scattering
Ultrasonics
Ultrasonography
velocity and attenuation
title The effect of bone structure on ultrasonic attenuation and velocity
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