Table 3.

Over-coverage (volume of ITV_3D that is not included in ITV_4D) as a function of the margin expansion used to compute the ITV_3D from the FDG-avid nodal target volume in un-gated PET (NTV_3D).

Patient	Node	Over-coverage for Given NTV3D->ITV3D Margin (cm3)
		0 mm	5 mm	8 mm	10 mm	13 mm
1	1	0.02	4.1	10	16	28
	2	0.55	10	22	35	59
2	1	0.15	7.0	15	24	39
	2	0.02	3.0	7.9	13	23
3	1	0.07	3.4	8.5	14	24
	2	0.09	3.9	9.4	15	26
4	1	0.48	10	21	31	49
	2	0.03	5.3	12	18	31
	3	0.03	4.6	11	18	31
5	1	0.00	7.2	16	25	42
	2	0.00	30	64	92	140