2017_SBRT_Course Book

Is the skull a suitable reference?

• Detection accuracy

0.0 1.0 2.0 3.0 4.0 5.0

0.0 1.0 2.0 3.0 4.0 5.0

y = 1,0152x + 0,0179 R² = 0,9997

y = 1,0003x + 0,0904 R² = 0,9996

-6 [°]

-4

-2

0

2

4

6

-6

-4

-2

0

2

4

6

-5.0 -4.0 -3.0 -2.0 -1.0

-5.0 -4.0 -3.0 -2.0 -1.0

ExacTrac Novalis Body Baseline

ExacTrac Novalis Body Baseline

rotations [°]

Average detected lateral rotations

Applied lateral rotations on the CT images [°]

Average detected longitudinal

Applied longitudinal rotations on the CT images [°]

Gevaert et al. Int J Radiat Oncol Biol Phys 2012

32

SBRT 2017 - D. Verellen