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Stereotactic radiosurgery: definition
l
Frame-based
vs.
frameless
g
When a stereotactic system of coordinates is used
for localization and positioning
l
External coordinates
vs.
anatomy
l
Invasive
vs.
non-invasive
g
When patient is rigidly fixed to the stereotactic
system using:
l
Invasive fixation
vs.
thermoplastic masks
4