C-arm rotation encoding methods and apparatus

摘要

This invention provides a method for estimating C-ARM fluoroscope rotation pose, and related programmed media and kits. In one embodiment the method includes measuring an angle of the C-arm using an accelerometer affixed to the C-arm, wherein the accelerometer is not moving during the measurement. The method includes generating angle correction equations based on differences between C-arm poses and corresponding accelerometer angles, and optionally generating structural compensation equations to compensate for structural flexion or deformation of the C-arm.

主权项

1. A method for estimating C-arm fluoroscope rotation pose, comprising:
measuring at least one static gravitational angle of the C-arm using an accelerometer affixed to the C-arm, wherein the accelerometer is not moving during the measurement; determining, at least one difference between the at least one static gravitational angle of the C-arm and an image pose angle; and estimating C-arm fluoroscope rotation pose based on the at least one difference.