Table 5 DVH analysis for OAR of the groups lung, spine metastasis and prostate for treatment plans created with FF and FFF beams

OAR

n

7

10

11

Rectum

Volume [cm³]

-

-

75.8 ± 47.2

Mean+SD [Gy]

-

-

48.6 ± 10.7

-

-

49.8 ± 10.7

p

-

-

0.020

V50Gy [%]

-

-

52.2 ± 19.5

-

-

56.4 ± 20.8

p

-

-

0.024

Bladder

Volume [cm³]

-

-

227.8 ± 128.5

Mean+SD [Gy]

-

-

29.5 ± 13.7

-

-

31.0 ± 14.2

p

-

-

0.019

V50Gy [%]

-

-

29.8 ± 20.9

-

-

31.6 ± 21.2

p

-

-

0.041

Myelon

D2% [Gy]

29.0 ± 5.9

38.4 ± 0.4

-

29.4 ± 7.7

39.3 ± 0.5

-

p

0.697

0.001

-