Table 3 Dosimetric parameters of SRS plans

1

Helical IMRT-SRS

14.5/96.7

9.0

2.22

0.06

0.70

1150

VMAT-SRS

14.7/98.3

0.00

2.29

0.07

0.50

386

2

Helical IMRT-SRS

13.9/92.7

6.9

1.17

0.11

0.65

1266

VMAT-SRS

14.8/98.5

36.3

3.07

0.03

0.30

419

3

Helical IMRT-SRS

14.8/98.3

10.7

1.25

0.22

0.80

1188

VMAT-SRS

14.7/97.7

58.6

3.28

0.03

0.06

375

4

Helical IMRT-SRS A

14.9/99.3

36.2

5.54

0.04

2.53

2712

Helical IMRT-SRS B

14.6/96.7

1.11

0.06

0.51

VMAT-SRS A

15.5/103.3

13.8

1.42

0.12

1.21

543

VMAT-SRS B

15.5/103.3

1.12

0.13

0.90

5

Helical IMRT-SRS

14.8/98.7

16.4

1.48

0.04

0.46

1222

VMAT-SRS

15.0/100

87.8

0.09

0.02

0.51

578

6

Helical IMRT-SRS

14.8/98.9

10.5

1.56

0.04

0.47

1051

VMAT-SRS

15.0/100

59.6

6.67

0.06

0.36

549

7

Helical IMRT-SRS

14.9/99.0

1.2

1.26

0.03

0.51

1314

VMAT-SRS

14.7/97.7

26.0

1.35

0.03

0.42

425

8

Helical IMRT-SRS A

13.7/91.0

0.50

1.00

0.13

0.27

2112

Helical IMRT-SRS B

14.7/98.1

1.54

0.03

0.42

VMAT-SRS A

14.4/96.0

16.5

1.26

0.07

0.41

571

VMAT-SRS B

14.5/96.7

1.70

0.04

0.44

9

Helical IMRT -SRS

14.9/99.5

0.54

1.57

0.01

0.37

1182

VMAT-SRS

14.8/98.5

25.1

3.00

0.01

0.33

403

10

Helical IMRT-SRS A

14.5/96.3

0.87

1.20

0.08

0.48

2784

Helical IMRT-SRS B

14.3/95.1

0.69

0.09

0.38

VMAT-SRS A

14.0/93.3

17.4

1.10

0.13

0.34

427

VMAT-SRS B

14.0/93.3

0.90

0.12

0.41

Helical IMRT-SRS (mean)

14.55

9.27

1.66

0.07

0.66

1598.10

VMAT-SRS

(mean)

14.73

34.10

2.10

0.07

0.49

467.60

p (T student)

ns

0.019

ns

ns

ns

0.000