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Table 2 Dose-volume characteristics

From: Toxicity of external beam accelerated partial-breast irradiation (APBI) in adjuvant therapy of early-stage breast cancer: prospective randomized study

Median (range)

APBI

N = 42

WBI

N = 42

Breast volume (cc)

858 (418, 1,577)

912 (269, 2,371)

CTV (cc)

58.5 (25.7, 141.0)

912.2 (269.3, 2,370.8)

CTV boost (cc)

 

14.5 (4.2, 59.4)

CTV Dmin(Gy)

29.3 (28.0, 30.2)

48.5 (32.5, 50.7)

CTV Dnear−min(Gy)

30.2 (29.9, 31.0)

49.0 (44.4, 51.1)

PTV (cc)

86.5 (40.9, 189.9)

1,251.8 (496.2, 2,753.1)

PTV boost (cc)

 

69.0 (33.9, 167.7)

PTV Dmin(Gy)

26.7 (23.2, 28.3)

45.9 (18.1, 49.2)

PTV Dnear−min(Gy)

29.6 (29.2, 29.8)

48.2 (42.1, 50.1)

Dmax(Gy)

32.1 (31.5, 32.7)

52.1 (42.0, 53.9)

  1. Abbreviations: APBI = accelerated partial breast irradiation, WBI = whole breast irradiation, Gy = Gray, CTV = clinical target volume, PTV = planning target volume, Dmin = minimum dose of the volume, Dnear−min = near-minimum dose of the volume, Dmax = maximum dose of the volume. Dnear−min referred according to ICRU report 83
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Radiation Oncology

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