Ultrasonic Measurement of Bone Density and Young's Modulus (Examination of Accuracy of the Measurement)

Autor:	Bailin Ding, Takeshi Takazawa, Miki Ota, Sotomi Ishihara, Hiroshi Shibata, Takahito Goshima
Rok vydání:	2006
Předmět:	symbols.namesake Materials science Bone density Biot number Mechanics of Materials Mechanical Engineering symbols General Materials Science Young's modulus Ultrasonic sensor Composite material Porosity Structure factor
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 72:957-963
ISSN:	1884-8338 0387-5008
DOI:	10.1299/kikaia.72.957
Popis:	This study was performed as a part of the research on the ultrasonic measurement in vivo of bone porosity, density, Young modulus and hardness. It was clarified that the bone porosity estimated by Biot's theory agrees well with the actual porosity within an accuracy of 5%. In the estimation the structure factor involved in the Biot's theory was determined as a value of 2. In this evaluation, an use of the propagation velocity of the fast wave is more advantageous to estimate the bone porosity than using the one of the slow wave. The estimated bone density by Biot's theory yields only ±5% differences from the measured value by the Archimedes method. Therefore, bone density can be estimated precisely by using the proposed ultrasonic wave method.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5674fc8c9d09dacf56b141cba0886ac7 https://doi.org/10.1299/kikaia.72.957 Zobrazit plný text záznamu