Figure 2. Comparative Monte Carlo simulations of Root Mean Square errors (RMS-e) over the volume of stereotactic space in the Brown-Roberts-Wells (BRW) localizer frame (LF) (left) and the Leksell G (LG) LF (right). The BRW LF is more stable over the entire volume of the stereotactic space. The LG LF is more accurate towards the cranial aspect of the stereotactic space, and less accurate especially at the inferior (higher numerical verticality) and posterior aspects.

BRW, Radionics CRW Stereotactic System, Integra LifeSciences Corporation, Plainsboro, New Jersey

Leksell G, Leksell Stereotactic Frame, Elekta, Stockholm, Sweden