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Table 2 Dose–volume histogram results for PTV2RU

From: Dosimetric feasibility of moderately hypofractionated/dose escalated radiation therapy for localised prostate cancer with intensity-modulated proton beam therapy using simultaneous integrated boost (SIB-IMPT) and impact of hydrogel prostate-rectum spacer

 

Range

Mean ± SD

Volume (cc)

113.2–329.25

194.58 ± 63.04

Dmax (Gy)

73.2–76.5

74.39 ± 0.86

D2% (Gy)

72.7–74.0

73.22–0.31

Dmean (Gy)

71.54–72.06

71.78 ± 0.11

Dmedian (Gy)

71.82–72.14

71.94 ± 0.1

D95% (Gy)

68.85–71.03

69.92 ± 0.59

D98% (Gy)

66.68–70.16

69.0 ± 0.92

PTV95%IDL (%)

96.16–99.95

98.84 ± 1.21

CI

1.02–1.21

1.12 ± 0.06

HI

1.00–1.06

1.04 ± 0.01

  1. RU = range uncertainty, CI = conformity index = VRI/Volume of PTV, HI = dose homogeneity index = D5%/D95%
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Radiation Oncology

ISSN: 1748-717X

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