Table 2.

Percentage deviation in GTV dose metrics between the static and moving target for SABR lung treatments with a 5s motion period. Deviations were calculated based on simulation of a single fraction delivery, and for the total number of fractions delivered for a treatment.

	Target Motion Amplitude (mm)	Single Fraction			All Fractions
		D99%	D50%	D1%	D99%	D50%	D1%
VMAT	5	$-0.5$	$-0.5$	$-0.4$	0.0	$-0.4$	$-0.1$
	10	2.6	$-1.7$	$-0.1$	3.0	$-1.2$	$-0.2$
	20	$-2.7$	1.5	3.7	$-3.4$	1.4	4.9
	30	$-2.1$	1.3	7.8	$-2.2$	1.1	7.9
dMLC IMRT	5	$-0.4$	1.0	$-0.3$	$-0.4$	0.9	$-0.2$
	10	0.3	0.0	$-0.1$	0.4	0.0	$-0.2$
	20	$-2.1$	1.6	5.5	$-2.7$	1.9	5.4
	30	$-2.9$	2.0	5.3	$-3.0$	2.1	5.0
3D CRT	5	0.8	0.2	$-0.2$	0.7	0.2	$-0.2$
	10	0.2	$-0.1$	0.4	0.1	$-0.1$	$-0.1$
	20	1.1	0.4	$-0.1$	1.1	0.4	$-0.1$
	30	0.0	0.2	0.1	0.0	0.0	0.1