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Table 3 Comparison of parameters to evaluate dose variation with in the target for photon and proton craniospinal irradiation (n = 18)

From: Comparison of therapeutic dosimetric data from passively scattered proton and photon craniospinal irradiations for medulloblastoma

CTV dosimetric parameters

Photons

Protons

 P value, Wilcoxian Signed Rank test

Significance level

Mean

SD

Mean

SD

CI

0.99

0.01

0.99

0.009

5.28E-01

NS

HI

1.05

0.009

1.04

0.012

2.47E-03

<0.01

Dmax

28.13

15.21

26.05

7.868

1.96E-04

<0.01