Table 1.

Scoring results of the manual method and automated method for ten patients. Shown are the manual scores by observer 1 and observer 2, the average score of both observers, and the automated score. The scores for both methods range from ‐1 and +1.

Patient	Manual Score			Automated Score
	Observer 1	Observer 2	Average
1	0.6	0.6	0.6	0.4
2	0.8	1	0.9	1
3	0	0	0	0.4
4	0.6	0.6	0.6	1
5	0.2	0.8	0.5	0
6	0.6	1	0.8	0.4
7	1	1	1	0.6
8	0.2	0.6	0.4	0.4
9	0.8	1	0.9	1
10	0.8	0.8	0.8	0.4

Note: A positive score indicates that the image set sorted using the breathing trace with the recalculated phase values resulted in 4D CT images with fewer or smaller artifacts, whereas a negative score indicate the other image set to have fewer or smaller artifacts. A score of zero indicates no difference between the two image sets.