Patient‐to‐robot registration: The fate of robot‐assisted stereotaxy

Background Robot-assisted stereotaxy (RAS) promises higher stereotactic accuracy (SA) and time efficiency (TE) than frame-based stereotaxy. However, both aspects are attributed to the problem of patient-to-robot registration. Objective To examine different registration techniques regarding their SA TE. Methods This study enrolled 57 patients undergoing RAS with bone fiducial (BFR) or laser surface (LSR). was measured by entry point error (EPE). Additionally, predictors (registration [RegE], distance-to-registration plane [DTC]) TE (imaging, skin-to-skin) were assessed. Results The mean 1.0 ± 0.8 mm. BFR increased reducing RegE DTC. In LSR, EPE depended on DTC (face forehead) highest for ≤100 CT-based LSR exerted a MR-based LSR. BFR, confined additional imaging. Conclusion Every technique counteracts one RAS. New solutions needed increase acceptance in neurosurgery.