VOIs/Dose Metrics

∆Mean ± ∆Standard Deviation (%)

∆Max (%)

PBS

VMAT

PBS

VMAT

RU

SE

SREs

SE

RU

SE

SREs

SE

PTV54 (D95%)

−0.7 ± 0.9

−1.8 ± 1.0

−2.5 ± 1.6

−4.4 ± 1.3

−3.6

−4.8

−8.0

−7.0

PTV60 (D95%)

−0.9 ± 0.6

−2.1 ± 1.0

−2.9 ± 1.7

−3.5 ± 1.9

−2.0

−5.8

−9.1

−7.5

CTV54 (D98%)

−0.4 ± 0.7

−1.1 ± 1.3

−1.6 ± 1.9

−1.7 ± 1.4

−2.9

−5.6

−7.1

−6.2

CTV60 (D98%)

−0.4 ± 0.5

−1.4 ± 1.2

−1.9 ± 1.6

−1.3 ± 1.5

−1.9

−6.2

−7.3

−6.2

Brainstem (D.max)

0.3 ± 2.7

0.6 ± 9.6

1.0 ± 10.0

0.3 ± 3.6

4.1

17.5

20.6

6.3

Cord (D.max)

0.1 ± 1.0

2.2 ± 2.2

2.2 ± 2.6

3.2 ± 2.5

1.3

13.2

13.5

8.1

Oral cavity (D.max)

0.3 ± 2.2

0.2 ± 0.8

0.4 ± 2.2

0.1 ± 3.3

3.9

1.8

5.6

4.6

Submandibular (D.mean)

0.2 ± 13.3

0.1 ± 5.0

−0.1 ± 13.0

1.0 ± 7.3

18.5

10.8

25.5

12.0

Contralatral Parotid (D.mean)

0.1 ± 3.7

−0.2 ± 5.4

−0.1 ± 6.2

0.5 ± 4.2

5.0

10.0

15.0

6.6

Ipsilateral Parotid (D.mean)

0.4 ± 5.3

0.4 ± 8.1

0.6 ± 9.0

0.8 ± 6.7

7.0

11.7

16.9

13.4

Larynx (D.mean)

0.2 ± 2.0

1.0 ± 2.1

1.1 ± 2.8

0.9 ± 1.7

3.2

5.9

7.1

4.0