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Table 1 Comparison of PV and OAR doses between O-VMAT and F-VMAT

From: A comparative study of identical VMAT about two adjacent targets with and without fixed-jaw technique

Regions of interest

O-VMAT

F-VMAT

p Values

PTV

 CI

0.831 ± 0.093

0.830 ± 0.090

0.833

 HI

1.055 ± 0.014

1.050 ± 0.011

0.157

Spinal cord

 Dmax (cGy)

3625.19 ± 376.55

3575.04 ± 343.55

0.208

Spinal cord PRV

 Dmax (cGy)

4148.33 ± 280.23

4124.20 ± 289.31

0.263

Intestine

 V20 (%)

29.68 ± 12.49

30.15 ± 11.89

0.624

 V30 (%)

16.68 ± 11.66

16.07 ± 11.65

0.161

 V40 (%)

9.44 ± 9.10

9.72 ± 9.41

0.123

interOARa

 Dmean (cGy)

654.96 ± 113.38

490.84 ± 80.26

0.018

 V3 (%)

70.11 ± 17.86

40.17 ± 12.91

0.018

 V5 (%)

37.40 ± 12.86

26.71 ± 7.03

0.018

 V10 (%)

17.47 ± 4.56

13.25 ± 2.26

0.018

MUs

766.40 ± 97.46

1133.21 ± 162.11

0.012

  1. a: except for the first case because it was an outlier in the box plot