Hello. I am not aware of such a database. But in order to obtain such imaging, given the paucity of the imaging and the objective difficulty in obtaining a 360°US evaluation (chest-abdomen), it would be useful to link the US probe with a navigation system and fuse the US with a pre-aquired CT and or MRI, to enhance orientation.
No, Ultrasound in the usual diagnostic range (2MHz - 18MHz) is not useful in imaging bones as almost total incident energy is reflected or refracted at the interface. In addition, air in the lungs would not allow imaging of much of thoracic spine even if the subject was totally immersed in a fluid bath.