Figure 1.

Different steps of Leksell frame application. (A) Application of the frame with the ear bars; note that the assistant is holding the frame in position with a lateral bar parallel to the intercommissural line while the senior surgeon is injecting a local anesthetic at the site of pin fixation; (B) position of the frame after its application; (C) the magnetic resonance imaging (MRI) localizer attached to the frame base; (D) the MRI localizer and the table adaptor attached to the frame base; (E) the table adaptor fitting to the MRI table.