y = 1,0152x + 0,0179
R² = 0,9997
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
-6
-4
-2
0
2
4
6
Average detected longitudinal
rotations [°]
Applied longitudinal rotations on the CT
images [°]
ExacTrac
Novalis Body
Baseline
Is the skull a suitable reference?
•
Detection accuracy
SBRT 2017 - D. Verellen
32
y = 1,0003x + 0,0904
R² = 0,9996
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
-6
-4
-2
0
2
4
6
Average detected lateral rotations
[°]
Applied lateral rotations on the CT
images [°]
ExacTrac
Novalis Body
Baseline
Gevaert
et al.
Int J Radiat Oncol Biol Phys 2012