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Observation of Motion
Hysteresis in half of the patients (1-5
mm separation of trajectories)
The extent of hysteresis and the
amplitude of the tumor motion remains
fairly constant during the entire
treatment
However, in many patients, shifts in the
exhale tumor position were observed
intra- and interfractionally
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-1
-0.8 -0.6 -0.4 -0.2
0
0.2
0.4
0.6
0.8
1
-1.5
-1
-0.5
0
0.5
1
1.5
0
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400