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Online Correction Protocol at NKI (brain
metastasis 1 x 18 Gy)
• scan patient with CBCT
1 min
• image analysis + visual verification
2 minutes
• correct errors
0.5 min
• rescan for verification
1 min
• treat & image during treatment (2 arcs) 2-5 min
• rescan after treatment
1 min
+4.5 min