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Table 2 Dosimetric characteristics

From: Late toxicity and five year outcomes after high-dose-rate brachytherapy as a monotherapy for localized prostate cancer

Dosimetric measure

Mean (SD)

Median (IQR)

PTV V100 (%)

93.5 (5.7)

95.5 (8.7)

PTV D90 (Gy)

38.8 (7.3)

41.2 (5.3)

Urethra V100 (cm3)

0.46 (0.18)

0.44 (0.18)

Urethra V120 (cm3)

0.16 (0.14)

0.15 (0.23)

Urethra V125 (cm3)

0.08 (0.09)

0.03 (0.14)

Urethra V150 (cm3)

0.0 (0.0)

0.0 (0.0)

Rectal V70 (cm3)

0.1 (0.1)

0.08 (0.005)

Rectal V80 (cm3)

0.006 (0.02)

0.00 (0.005)

  1. Abbreviations: IQR interquartile range, PTV planning target volume, PTV V 100 percentage of PTV receiving ≥100% of prescribed dose, D 90 dose administered to 90% of the PTV, urethral V 100 -V 150 absolute urethral volume that received a dose ≥100%, 120%, 125%, 150% of the prescribed dose, rectal V 70 -V 80 absolute rectal volume that received a dose ≥70% or 80%, of the prescribed dose.
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Radiation Oncology

ISSN: 1748-717X

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