GKE

VMAT

(P Value)

IMPT

(P Value)

P value

VMAT vs. IMPT

PTV coverage (%)

98.9 ± 2.4

99.4 ± 0.6

(0.451)

96.8 ± 2.1

(0.060)

0.005

CI

0.67 ± 0.11

0.68 ± 0.08

(0.122)

0.71 ± 0.12

(0.440)

0.519

GI

2.8 ± 0.2

3.9 ± 0.7*

(<0.001)

5.2 ± 1.7*

(0.003)

0.003

HI (%)

13.7 ± 1.5

4.6 ± 1.7*

(<0.001)

4.8 ± 1.7*

(<0.001)

0.265

Delivery time (min)

53.7 ± 14.8

3.5 ± 0.8*

(<0.001)

4.7 ± 2.0*

(<0.001)

0.059

Normalization (%)

49.0 ± 2.0

78.2 ± 4.2*

(<0.001)

80.9 ± 4.1*

(<0.001)

0.606

Irradiated volume/PTV

4.1 ± 0.8

5.7 ± 1.1*

(0.008)

7.5 ± 4.5*

(0.031)

0.219

Low dose volume/PTV

12.0 ± 1.9

20.2 ± 8.3*

(0.022)

20.6 ± 19.6

(0.189)

0.905