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Table 2 Comparisons of dose metrics

From: Cardiac dose reduction during tangential breast irradiation using deep inspiration breath hold: a dose comparison study based on deformable image registration

  DIBH FB p-value
Average SD Average SD
Heart Dmean (cGy) 279.3 99.7 724.1 272.1 0.000
Dmax (cGy) 4947.4 810.6 5114.0 309.1 0.191
V10 (%) 4.0 2.2 14.6 6.0 0.000
V20 (%) 2.7 1.8 12.3 5.5 0.000
V30 (%) 2.0 1.5 10.7 5.2 0.000
V40 (%) 1.3 1.2 8.7 4.6 0.000
V50 (%) 0.2 0.4 2.5 4.0 0.001
MHD (cm) 0.7 0.4 2.1 0.6 0.000
Lung Dmean (cGy) 943.7 223.2 1018.4 300.9 0.008
V20 (%) 16.7 4.4 18.9 6.3 0.000
V40 (%) 11.9 3.6 14.1 5.5 0.000
CLD (cm) 2.9 0.6 2.6 0.5 0.014
LAD Dmean (cGy) 2368.9 1162.1 4079.1 940.2 0.000
Dmax (cGy) 4720.9 911.8 5058.6 338.7 0.044
  1. DIBH deep inspiration breath hold, FB free breathing, SD standard deviation