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Table 3 Patient planning results of the phase II trial for the different hair follicle subvolumes for 5 fractions (prescription dose 20 Gy)

From: Hair-sparing whole brain radiotherapy with volumetric arc therapy in patients treated for brain metastases: dosimetric and clinical results of a phase II trial

Hair follicle subvolume Mean SALT score Mean D50 ± SD (Gy) % of prescribed dose Mean V5 ± SD (%) Mean V10 ± SD (%) Mean V15 ± SD (%) Mean V20 ± SD (%)
Total 75 ± 13 12.6 ± 0.9 62.9 92.2 ± 4.2 66.8 ± 6.4 31.1 ± 9.3 0.4 ± 0.8
Left 96 ± 0.05 15.7 ± 0.8 78.4 86.1 ± 1.5 79.8 ± 8.5 51.6 ± 8.5 0 ± 0
Right 96 ± 0.05 16.0 ± 0.9 80.0 85.6 ± 2.3 78.9 ± 4.5 50.5 ± 7.1 0 ± 0
Back 60 ± 18.7 10.5 ± 1.3 52.3 77.9 ± 6.8 45.0 ± 10.6 12.8 ± 9.2 0 ± 0
Top 65 ± 18.3 11.3 ± 2.7 56.3 76.6 ± 11.3 49.9 ± 18.4 21.8 ± 16.8 0.6 ± 2