434 / 1031
Total margin
• Complicated formula…
• But σ is still the sum of all random errors
– Setup + organ motion ≈ 1.5 mm
– Breathing ≈ 0.25 * Amplitude
• And Σ the sum of all systematic errors
– Setup + organ motion ≈ 1.5 mm
– Delineation variability ≈ 2-3 mm
• Delineation largest contributor
7.0 5.2
84.0 )
( 84.0 5.2
2
2
2
p
p
M