Table 1.

Comparisons of dosimetric parameters of target volumes among the four plans in 20 patients.

PTVs	Parameters	2.5FJ	2.5DJ	5.0FJ	5.0DJ	P2.5	P5.0	PF	PD	P*
PTVnx	D98% (Gy)	69.99 ± 0.19	69.99 ± 0.17	70.00 ± 0.24	69.99 ± 0.23	0.453	0.47	0.711	0.899	0.766
	V100% (%)	97.96 ± 1.03	97.92 ± 1.00	97.94 ± 1.09	97.90 ± 1.08	0.176	0.494	0.706	0.688	0.263
	Dmean (Gy)	71.66 ± 0.35	71.65 ± 0.35	72.00 ± 0.50	71.99 ± 0.45	0.043	0.635	0	0	0
	Dmax (Gy)	74.32 ± 1.15	74.31 ± 1.15	74.54 ± 0.95	74.58 ± 0.86	0.624	0.352	0.227	0.156	0.165
	CI	0.91 ± 0.02	0.91 ± 0.02	0.86 ± 0.04	0.86 ± 0.03	1	0.891	0	0	0
	HI	0.042 ± 0.009	0.042 ± 0.009	0.050 ± 0.012	0.050 ± 0.012	0.297	0.577	0	0	0
PTVnd	D98% (Gy)	66.11 ± 0.25	66.09 ± 0.26	65.96 ± 0.27	65.97 ± 0.23	0.119	0.947	0.011	0.012	0.003
	Dmean (Gy)	66.77 ± 0.25	66.76 ± 0.25	67.98 ± 0.32	67.99 ± 0.29	0.012	0.696	0.005	0	0
	Dmax (Gy)	70.74 ± 1.17	70.72 ± 1.17	71.13 ± 1.31	71.17 ± 1.27	0.032	0.53	0.008	0	0.001
PTV1	D98% (Gy)	60.39 ± 0.55	60.36 ± 0.51	60.99 ± 0.86	60.99 ± 0.83	0.056	0.904	0	0	0
	V100% (%)	98.44 ± 1.27	98.41 ± 1.18	99.00 ± 1.02	99.00 ± 1.05	0.467	0.881	0	0	0
PTV2	D98% (Gy)	54.13 ± 0.42	54.13 ± 0.40	54.01 ± 0.62	53.99 ± 0.58	0.789	0.33	0.068	0.029	0.02
	V100% (%)	98.20 ± 1.09	98.16 ± 1.14	97.74 ± 1.31	97.80 ± 1.21	0.088	0.419	0.001	0	0

P^2.5: 2.5FJ vs. 2.5DJ; P^5.0: 5.0FJ vs. 5.0DJ; P^F: 2.5FJ vs. 5.0FJ; P^D: 2.5DJ vs. 5.0DJ; P^*: 2.5FJ vs. 5.0DJ.