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Table 1 Target volume dose parameters

From: Whole breast and regional nodal irradiation in prone versus supine position in left sided breast cancer

Target Volumes   Axilla prone Axilla supine Significance Partial axilla prone Partial axilla supine Significance
CTV_WBI
  Volume (ml) 420 ± 165 477 ± 174 P < 0.05 420 ± 165 477 ± 174 P < 0.05
  Dmean (Gy) 40.26 ± 0.09 40.34 ± 0.12 - 40.20 ± 0.10 40.27 ± 0.33 -
  D02 (Gy) 42.12 ± 0.38 43.12 ± 0.80 - 42.16 ± 0.44 42.80 ± 0.35 P < 0.05
  D05 (Gy) 41.74 ± 0.29 42.40 ± 0.49 - 41.72 ± 0.24 42.43 ± 0.41 P < 0.05
  D50 (Gy) 40.21 ± 0.10 40.24 ± 0.16 - 40.03 ± 0.06 40.31 ± 0.41 -
  D95 (Gy) 38.98 ± 0.16 38.63 ± 0.45 - 39.13 ± 0.24 38.00 ± 0.18 P < 0.05
  D98 (Gy) 38.47 ± 0.24 38.01 ± 0.58 P < 0.05 38.72 ± 0.41 37.45 ± 0.23 P < 0.05
  Heterogeneity 0.09 ± 0.01 0.13 ± 0.03 - 0.09 ± 0.02 0.13 ± 0.01 P < 0.05
PTV_WBI
  Volume (ml) 483 ± 176 560 ± 204 P < 0.05 483 ± 176 560 ± 204 P < 0.05
  Dmean 40.23 ± 0.09 40.19 ± 0.06 - 40.23 ± 0.07 40.15 ± 0.16 -
  D02 42.26 ± 0.42 43.06 ± 0.75 - 42.34 ± 0.51 42.86 ± 0.19 -
  D05 41.85 ± 0.32 42.34 ± 0.46 - 41.90 ± 0.30 42.46 ± 0.30 P < 0.05
  D50 40.21 ± 0.10 40.18 ± 0.10 - 40.05 ± 0.02 40.19 ± 0.25 -
  D95 38.76 ± 0.23 38.20 ± 0.50 P < 0.05 39.02 ± 0.31 37.68 ± 0.25 P < 0.05
  D98 37.91 ± 0.48 36.54 ± 0.96 P < 0.05 38.45 ± 0.62 37.02 ± 0.30 P < 0.05
  Heterogeneity 0.11 ± 0.02 0.16 ± 0.03 P < 0.05 0.10 ± 0.02 0.15 ± 0.01 P < 0.05
CTV_LNI
  Volume (ml) 114 ± 31 89 ± 19 P < 0.05 51 ± 18 28 ± 3 P < 0.05
  Dmean 40.30 ± 0.32 40.28 ± 0.13 - 40.12 ± 0.17 40.26 ± 0.15 -
  D02 42.57 ± 0.55 42.94 ± 0.73 - 42.39 ± 0.34 42.32 ± 0.60 -
  D05 42.09 ± 0.58 42.42 ± 0.55 - 41.99 ± 0.29 42.01 ± 0.19 -
  D50 40.40 ± 0.27 40.23 ± 0.15 - 40.16 ± 0.13 40.33 ± 0.13 -
  D95 38.42 ± 0.27 38.45 ± 0.28 - 37.99 ± 0.63 38.26 ± 0.36 -
  D98 36.11 ± 2.07 37.47 ± 0.57 - 36.72 ± 1.22 37.54 ± 0.48 -
  Heterogeneity 0.16 ± 0.05 0.14 ± 0.02 - 0.14 ± 0.03 0.12 ± 0.02 -
PTV_LNI
  Volume (ml) 192 ± 51 152 ± 30 P < 0.05 82 ± 34 51 ± 6 -
  Dmean 40.01 ± 0.35 40.07 ± 0.17 - 39.84 ± 0.31 40.04 ± 0.10 -
  D02 42.55 ± 0.56 42.87 ± 0.62 - 42.31 ± 0.37 42.32 ± 0.31 -
  D05 42.08 ± 0.56 42.27 ± 0.41 - 41.89 ± 0.32 41.96 ± 0.22 -
  D50 40.27 ± 0.19 40.11 ± 0.15 P < 0.05 40.03 ± 0.10 40.15 ± 0.10 -
  D95 37.02 ± 1.47 37.81 ± 0.32 - 36.86 ± 1.43 37.67 ± 0.22 -
  D98 33.12 ± 4.25 36.11 ± 1.24 P < 0.05 34.40 ± 2.42 36.69 ± 0.39 -
  Heterogeneity 0.23 ± 0.10 0.17 ± 0.03 - 0.20 ± 0.06 0.14 ± 0.01 -
PTV_LNI_opt
  Volume (ml) 177 ± 50 134 ± 31 P < 0.05 75 ± 32 50 ± 6 -
  Dmean 40.15 ± 0.24 40.11 ± 0.14 - 40.07 ± 0.13 40.06 ± 0.11 -
  D02 42.53 ± 0.54 42.88 ± 0.65 - 42.33 ± 0.35 42.32 ± 0.31 -
  D05 42.06 ± 0.55 42.32 ± 0.47 - 41.93 ± 0.30 41.97 ± 0.22 -
  D50 40.29 ± 0.17 40.13 ± 0.13 P < 0.05 40.12 ± 0.09 40.16 ± 0.11 -
  D95 38.18 ± 0.26 37.90 ± 0.31 - 38.10 ± 0.47 37.76 ± 0.19 -
  D98 34.86 ± 2.90 36.32 ± 1.18 - 36.46 ± 0.73 36.78 ± 0.38 -
  Heterogeneity 0.19 ± 0.07 0.16 ± 0.03 - 0.15 ± 0.02 0.14 ± 0.01 -
  1. Data are presented as group average ± standard deviation