ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

Prostate: 2.5 S + 0.7 s

Sa

all in cm systematic errors squared randomerrors squared

delineation organ motion setup error

0.25

0

0 Rasch et al, Sem. RO 2005

0.0625

0.3 0.1

0.3 0.2 0.1

0.09 van Herk et al, IJROBP 1995

0.09

0.04 Bel et al,IJROBP 1995

0.01

intrafraction motion

0.01

total error

0.40

0.37

0.16

0.14

times 2.5

times 0.7

error margin

1.01

0.26

total error margin

1.27

Margin calculation for X, do same for Y and Z