Table 2 Comparison of plan quality

PTV

V_95% (%)

86.4 ± 1.7

88.4 ± 1.7

<0.01

91.0 ± 1.5

91.7 ± 1.3

0.14

HI

0.27 ± 0.02

0.26 ± 0.02

0.06

0.23 ± 0.02

0.23 ± 0.02

0.96

CI

0.65 ± 0.04

0.66 ± 0.04

0.17

0.65 ± 0.04

0.66 ± 0.04

0.51

Spinal Cord

D_50%

15.9 ± 0.6

15.1 ± 0.5

<0.01

15.6 ± 0.3

15.0 ± 0.4

0.01

V_75% (ccm)

0.9 ± 0.3

0.5 ± 0.1

<0.01

1.0 ± 0.5

0.7 ± 0.2

0.01

Normal Tissue

D_50%

0.8 ± 0.4

0.6 ± 0.4

<0.01

1.1 ± 0.7

0.8 ± 0.6

<0.01