Table 3.

Dosimetric comparison of CI and PTV for the three IMRT techniques (mean ± SD)

				P value
	SIB	Two-phase IMRT	SEQ-SIB	SIB vs two-phase IMRT	SIB vs SEQ-SIB	SEQ-SIB vs two-phase IMRT
CI
PTVboost	1.09 ± 0.05	1.39 ± 0.14	1.14 ± 0.07	<0.0001	0.02	<0.0001
PTVelective	1.34 ± 0.12	1.80 ± 0.28	1.60 ± 0.18	<0.0001	<0.0001	0.01
PTVboost
V93 (%)	99.8 ± 0.2	99.8 ± 0.2	99.7 ± 0.3	0.37	0.27	0.09
D2 (%)	108.9 ± 1.5	110.4 ± 2.6	109.0 ± 1.7	0.03	0.85	0.049
D99 (%)	96.8 ± 1.1	98.4 ± 1.8	97.0 ± 1.2	0.001	0.63	0.005
D95 (%)	100	101.9 ± 1.4	100.3 ± 0.1	<0.0001	<0.0001	<0.0001
PTVelective
V93 (%)	99.8 ± 0.2	99.9 ± 0.1	99.9 ± 0.1	0.02	0.38	0.35
D99 (%)	97.3 ± 2.2	101.9 ± 3.5	100.4 ± 2.7	<0.0001	0.0003	0.14
D95 (%)	102.0 ± 1.5	106.2 ± 3.7	104.6 ± 2.7	<0.0001	0.0007	0.14