Table 1.

Patient sample used in dose accumulation study. RUL and RLL stand for right upper and right lower lobe, respectively. The magnitude of tumor motion was determined by the centroid displacement over all 4DCT phases.

Patient	GTV Location	GTV (cm3)	GTV centroid displacement (cm)
			Lateral	A-P	S-I
1	RUL	33.93	0.15	0.28	0.37
2	RLL	5.23	0.12	0.08	0.80
3	RLL	6.01	0.52	0.09	2.00
4	RLL	31.81	0.31	0.57	1.42