21
With oxygen mask
Without oxygen mask
0.00
0.03
0.06
Mean
0.19
0.19
0.16
σ
0.23
0.23
0.18
∑
AP
(cm)
CC
(cm)
LR (cm)
0.20
0.17
0.18
σ
-0.09
0.08
0.04
Mean
0.22
0.21
0.15
∑
AP (cm)
CC (cm)
LR (cm)
No significant difference in tumour mean position
Respiratory monitoring system
J. Wolthaus, M. Rossi