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Some definitions
•
Frame-based
versus
Frameless
Ø
Whether a stereotactic system of external coordinates is used
for localization and positioning or anatomy and real-time in-
room imaging
•
Invasive
versus
non-invasive
Ø
Whether the patient is rigidly fixed to the stereotactic system
using invasive techniques or a patient friendly immobilization
system is used allowing multiple fractions
SBRT 2017 - D. Verellen
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