Skip to main content

Table 2 Summary of target volumes dosimetric analysis from Dose Volume histograms

From: Proton versus photon deep inspiration breath hold technique in patients with hodgkin lymphoma and mediastinal radiation

Parameter

Objective

IMPT

RA

p (Wilcoxon)

CTV: 481.3 ± 358.5 [108–1355] cm3

 Mean [Gy]

30.0

30.1 ± 0.2

30.6 ± 0.2

n.s.

 D1% [Gy]

Minimize

31.5 ± 0.5

32.0 ± 0.5

0.01

 D5%-D95% [Gy]

Minimize

2.0 ± 0.3

2.5 ± 0.4

< 0.01

 D98% [%]

> 28.5Gy (95%)

29.4 ± 0.1

28.8 ± 0.4

0.04

PTV: 881.8 ± 597.0 [215.7–2205.7] cm3

 Mean [Gy]

30.0

30.0

30.0

 D1% [Gy]

Minimize

31.7 ± 0.3

32.0 ± 0.4

0.07

 D5%-D95% [Gy]

Minimize

2.3 ± 0.3

3.5 ± 0.4

< 0.01

 D95% [%]

>27Gy (90%)

28.8 ± 0.3

27.3 ± 0.7

< 0.01

  1. Dx% dose received by the x% of the volume, Vx% volume receiving at least x% of the prescribed dose, CI ratio between the patient volume receiving at least 90% of the prescribed dose and the volume of the total PTV