![]() ![]() There was no evidence for a relation of APU to physical load comparing dominant and nondominant hand and relating the results to subjectively estimated physical load. Further, when comparing the results of both hands intraindividually almost identical values indicated constant intraindividual architecture of bone at this location. In 53 healthy subjects (15-81 years old 27 women, 26 men), there was a decrease of APU with age (r = -0.30, p < 0.05). ![]() In humans APU was measured in the mediolateral direction at the midphalanx of the middle finger. Fastest sound transmission led exclusively through cortical bone so that intertrabecular connectivity in spongious bone could not influence the result. Apparent phalangeal ultrasound transmission velocity (APU) measured in 54 isolated, fresh pig phalanges was shown to be independent of bone mineral density (BMD) measured by SPA. The aim of our study was to use ultrasound transmission velocity to obtain information about the material properties of bone tissue, keeping other factors possibly influencing ultrasound transmission as constant as possible. The square of ultrasound transmission velocity in a material is related to the modulus of elasticity, which is known to be an indicator of stability in bone. Kann, P Schulz, U Klaus, D Piepkorn, B Beyer, J In-vivo investigation of material quality of bone tissue by measuring apparent phalangeal ultrasound transmission velocity. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |