A Hybrid IMRT/VMAT Technique for the Treatment of Nasopharyngeal Cancer

Table 3

Comparison of delivery time and MUs for 9F-IMRT, 2ARC-VMAT, and Hybrid IMRT/VMAT plans.

	9F-IMRT	2ARC-VMAT	Hybrid	Pairwise comparison
				Delivery time (s)	812 ± 42	179 ± 0	408 ± 10	0.00	0.00	0.00
MU	2256 ± 219	507 ± 43	1394 ± 117	0.00	0.00	0.00

MUs = monitor units.
: 9F-IMRT versus 2ARC-VMAT; : 9F-IMRT versus Hybrid; : 2ARC-VMAT versus Hybrid.