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Intra-cranial stereotactic radiotherapy
Work-flow of frame-less cranial SRT using CBCT
imaging and robotic online correction of set-up errors
1. Double layer thermoplastic mask
2. Patient positioning based on drawings
on the mask
3. Cone-beam CT imaging
4. Definition of region of interest for
image registration
5. Registration planning CT vs verification
CBCT
6. Automatic correction of errors in 6 DOF
7. Verification CBCT in SF treatment
8. Start of treatment