TABLE 3.

Number of plans that met clinical dose criteria based on RTOG 1016 for the original clinical plans and the autoplans evaluated in this study

Number of clinical/autoplans that met clinical dose recommendations
Structure	Constraint	Clinic	Baseline	Versa HD	Halcyon	2100 v15.6
Spinal cord	Dmax < 45 Gy	50	50	50	50	50
Brainstem	Dmax < 54 Gy	48	50	50	50	50
Ipisilateral parotid	Dmean < 26 Gy	29	24	21	25	24
	V30Gy < 50%	40	42	40	41	42
Contralateral parotid	Dmean < 26 Gy	44	41	41	40	40
	V30Gy < 50%	48	47	46	46	46
Cochleae	Dmax < 35 Gy	45	40	40	39	40
Optic chiasm	Dmax < 54 Gy	49	50	50	50	50
Optic nerves	Dmax < 54 Gy	49	50	50	50	50
Lenses	Dmax < 7 Gy	44	45	46	47	45
Eyes	Dmax < 35 Gy	45	45	45	45	45
Brain	Dmax < 54 Gy	34	36	37	37	36
High‐dose PTV	V1cc < 110%	48	49	50	48	50
	V1cc < 117%	50	50	50	50	50
	V95% > 95%	50	50	50	50	50
Intermediate‐dose PTV	V95% > 100%	34	16	9	10	13
	V95% > 80%	50	50	50	50	50
Low‐dose PTV*	V95% > 100%	30	30	15	15	21
	V95% > 80%	47	47	47	47	47

Abbreviations: D _max, maximum dose; D _mean, mean dose; PTV, planning target volume; RTOG, Radiation Therapy Oncology Group.

^* Three patients were treated with only two PTVs.