Turner C H, Eich M
Center for Hard Tissue Research, Creighton University Dental School, Omaha, Nebraska 68178.
Calcif Tissue Int. 1991 Aug;49(2):116-9. doi: 10.1007/BF02565132.
Ultrasonic methods measure properties intrinsic to bone's structure that are not necessarily dependent on bone mass. Therefore, ultrasound may prove to be a useful tool for diagnosing bone fragility and osteoporosis. The goal of this study was to determine the relationship between apparent velocity of ultrasound (AVU) measured using the OsteoTechnology prototype I machine and cancellous bone yield strength (sigma y). AVU correlated well with sigma y (r = 0.753). Consistent with theory, the best predictor of cancellous bone strength was the combination of apparent density (rho a) and AVU, rho a (AVU)2, which had an r2 of 77.4%.
超声方法可测量骨结构固有的特性，这些特性不一定取决于骨量。因此，超声可能被证明是诊断骨脆性和骨质疏松症的有用工具。本研究的目的是确定使用骨技术原型I机器测量的超声表观速度（AVU）与松质骨屈服强度（σy）之间的关系。AVU与σy相关性良好（r = 0.753）。与理论一致，松质骨强度的最佳预测指标是表观密度（ρa）和AVU的组合，即ρa(AVU)²，其r²为77.4%。
