Table 2 The dosimetric results of PTV between HT and SaS-IMRT plans for two groups

Group 1 -single tumour group

V_95%

100

99.44 ± 0.72(97.97-100.00)

99.63 ± 0.51(98.78-100.00)

n/a

V_100%

95

97.26 ± 1.13(95.87-98.79)

97.84 ± 0.99(96.50-99.07)

n/a

V_107%

0

0.00 ± 0.00

8.75 ± 4.94(2.30-15.14)

< 0.05

CI

1

1.21 ± 0.07(1.15-1.37)

1.30 ± 0.05(1.23-1.40)

< 0.05

HI

1

1.04 ± 0.01(1.02-1.05)

1.06 ± 0.01(1.02-1.07)

< 0.05

Group 2 -multiple tumours group

V_95%

100

99.09 ± 0.45(98.43-99.95)

98.47 ± 0.69(97.35-99.25)

n/a

V_100%

95

96.20 ± 0.70(95.60-97.86)

96.13 ± 1.10(94.80-97.77)

n/a

V_107%

0

0.30 ± 0.58(0.00-1.60)

16.62 ± 2.38(13.70-20.53)

< 0.05

CI

1

1.25 ± 0.11(1.15-1.47)

1.43 ± 0.07(1.37-1.57)

< 0.05

HI

1

1.06 ± 0.01(1.02-1.07)

1.10 ± 0.02(1.08-1.12)

< 0.05