AIM In order to investigate the significance of B-mode ultrasound for determination of bone induction activity of bone morphogenitic protein (BMP) and to search for a new method to determinate the activity.

• 目的 探讨 B超在测定骨形成蛋白 (bone morpho-genetic protein；BMP)成骨诱导活性的意义 ；为 BMP成骨诱导活性的测定提供一种新方法 .