101 / 1542
cran
caud
left
right
patient set-up errors 2D:
each fraction:
1
6
2 8
7
4
3
9
5
11
10
patient 1
- in each fraction:
total set-up error =
systematic
error +
random
error
- patient’s
systematic
error
mean error
mean
set-up errors
Systematic and random errors