Table 3.

Monitor Units.^a,b

		TB	TB-FFF	H-2arcs	H-3arcs	Significance
Breast	MU	673 ± 89	–	706 ± 83	733 ± 62	B, C, F
	Delta%	Reference	–	+4.9	+8.9
Head and Neck	MU	639 ± 50	716 ± 50	696 ± 29	711 ± 77	A, D
	Delta%	−10.8	Reference	−2.8	−0.7
Prostate	MU	1024 ± 232	1208 ± 317	1013 ± 154	1051 ± 150	A, D, E, F
	Delta%	−15.2	Reference	−16.1	−13.0

Abbreviations: FFF, flattening filter free, H, Halcyon; TB, TrueBeam.

^a Delta is the percentage variation with the reference plan which is the TB for the breast cases and TB-FFF for the head and neck and the prostate plans.

^b Statistical significance: A, TB versus TB-fff; B, TB versus H2; C, TB versus H3; D, TB-fff versus H2; E, TB-fff versus H3; F, H2 versus H3.