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Table 3 Summary of dosimetric results for Organs At Risk

From: Chest wall desmoid tumours treated with definitive radiotherapy: a plan comparison of 3D conformal radiotherapy, intensity-modulated radiotherapy and volumetric-modulated arc radiotherapy

Parameter Patients Parameter 3DCRT IMRT VMAT P value
3DCRT vs IMRT 3DCRT vs VMAT IMRT vs VMAT
Heart 10/10 Mean (Gy) 8.3 ± 7.6 5.7 ± 3.7 6.5 ± 4.3 0.074 0.333 0.093
V25Gy (%) 8.1 ± 14.3 3.6 ± 4.0 3.9 ± 4.9 0.310 0.735 0.917
V30Gy (%) 5.6 ± 10.0 3.9 ± 5.4 2.3 ± 3.5 0.237 0.735 0.753
Lung 10/10 Mean (Gy) 11.9 ± 7.9 9.4 ± 5.4 8.9 ± 4.5 0.014 0.017 0.386
V20Gy (%) 21.0 ± 18.7 16.2 ± 12.4 12.1 ± 7.5 0.021 0.028 0.515
Right breast (contralateral breast) 3/10 Mean (Gy) 3.3 ± 0.5 2.7 ± 0.5 3.5 ± 1.6 0.285 0.593 0.285
V10Gy (%) 2.6 ± 3.0 2.7 ± 2.4 5.2 ± 7.7 1.000 1.000 0.655
V20Gy (%) 1.4 ± 2.1 0.5 ± 0.8 0.4 ± 0.7 0.180 0.655 0.655
Left breast (ipsilateral breast) 3/10 Mean (Gy) 19.7 ± 12.7 11.4 ± 6.8 11.1 ± 7.6 0.109 0.109 0.593
V10Gy (%) 44.4 ± 36.2 38.9 ± 31.6 28.8 ± 20.4 0.180 0.285 0.593
V20Gy (%) 28.9 ± 20.0 18.2 ± 13.6 15.7 ± 18.4 0.285 0.593 0.593
  1. Mean (Gy) refers to the mean dose to organ at risk. V25Gy (%) refers to the percentage of the volume receiving 25 Gy dose. P value determined using Wilcoxon matched pair rank sum test in SPSS