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Table 2 Target and normal tissue dosimetry

From: 3 fraction pencil-beam scanning proton accelerated partial breast irradiation: early provider and patient reported outcomes of a novel regimen

Target/Organ at Risk

DVH Parameter

Dosimetry Achieved Median (IQR)

CTV

V95% (%)

99.1% (97.6, 99.9)

Heart

D0.01 cc (Gy)

0.1 Gy (0.0, 0.9)

Mean (Gy)

0.0 Gy (0.0, 0.0)

Lung, Ipsilateral

Mean (Gy)

0.15 Gy (0.05, 0.31)

V5 Gy (%)

0.4% (0.0, 1.4)

Ipsilateral Breast

V50% (%)

27.8% (20.7, 34.4)

V100% (%)

8.4% (5.2–11.3)

Skin

D0.01 cc (Gy)

20.6 Gy (19.6, 21.1)

 

D1cc (Gy)

19.5 (18.6, 20.2)

  1. CTV, clinical target volume; V95%, the volume receiving 95% of the prescribed dose or more; D0.01cc, maximum dose received by at least 0.01 cc of the volume; V5 Gy, the volume receiving 5 Gy or more; D1cc, maximum dose received by at least 1 cc of the volume; V50%, the volume receiving 50% or more of the prescribed dose; V100%, the volume receiving 100% or more of the prescribed dose