Frameless Stereotactic Surgery

Instead of using an external frame as a reference
point, frameless stereotactic surgery uses tiny
markers, called fiducial markers, that are taped
or glued to the head before the brain is scanned.
The scan is then loaded into a planning and
navigation computer, producing a 3-dimensional
representation of the head, brain and tumor.
During surgery these markers are touched with
a pointing device, called a “Wand.” Identified
on the scan, the computer “knows” where the
surgical instrument is during the procedure in
relation to the brain and tumor.