Fiducial registration error and target registration error are uncorrelated

@inproceedings{Fitzpatrick2009FiducialRE,
  title={Fiducial registration error and target registration error are uncorrelated},
  author={J. Michael Fitzpatrick},
  booktitle={Medical Imaging: Image-Guided Procedures},
  year={2009}
}
Image-guidance systems based on fiducial registration typically display some measure of registration accuracy based on the goodness of fit of the fiducials. A common measure is fiducial registration error (FRE), which equals the root-meansquare error in fiducial alignment between image space and physical space. It is natural for the surgeon to regard the displayed estimate of error as an indication of the accuracy of the system’s ability to provide guidance to surgical targets for a given case… CONTINUE READING