ASMR 2016

Fiducial markers: offline • Succesfull reduction of systematic error!  Without applying a correction protocol, the systematic errors ( Σ) are:  4.8, 2.2 and 2.9 mm in the vertical, lateral and longitudinal directions  The SAL protocol  0.7, 0.8 and 0.8 mm, respectively.  Random position variations are not reduced in an off-line correction protocol