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IMRT/VMAT vs. IMPT
IMRT/VMAT
•
Image-guidance!
• Patient setup:
in PTV
• Organ motion:
in PTV
• Dose calculation:
-
• Intra-fraction interplay:
double arcs
• Anatomic changes:
re-
planning
IMPT
•
Image-guidance!
• Patient setup:
?
• Organ motion:
IM
• Dose calculation:
?
• Intra-fraction interplay:
repainting
• Anatomic changes:
re-
planning