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243 / 1196
Rule of thumb: Δ = 0.02
r (mm)
Problem for structures far from rotation center
•
3
°
rotation (SD 1
°
)
•
Rotation centre is in CTV
→
6 mm shift at 10 cm distance!
→
does treatment plan allow this?
Corrections without rotations
r (mm)
Δ (mm)
(degr.)
