Change in breathing amplitude
M = 21%, SD = 19%, p = 0.00076
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
Patient
Breathing Amplitude [cm]
Oxygen Mask
Normal
ESTRO IGRT 2015