ASMR 2016

Corrections without rotations

Rule of thumb: Δ = 0.02    r (mm)

Problem for structures far from rotation center • 3 ° rotation (SD 1 ° ) • Rotation centre is in CTV

Δ (mm)

→ 6 mm shift at 10 cm distance! → does treatment plan allow this?

 (degr.)

r (mm)