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Table 2 Average dosimetric parameters for patients with and without toxicity

From: NTCP modeling and dose–volume correlations for acute xerostomia and dry eye after whole brain radiation

Endpoint Xerostomia
  Toxicity No toxicity
Number of patients 19 36
Parotid mean ± std. dev. (Gy) 16.2 ± 6.2 13.8 ± 4.7
Parotid V20 ± std. dev. (%) 43.0 ± 19.5 34.6 ± 15.7
Endpoint Dry eye  
  Toxicity No toxicity
Number of patients 13 41
Lacrimal mean ± std. dev. (Gy) 26.6 ± 4.9 25.0 ± 6.7
Lacrimal V15 ± std. dev. (%) 86.3 ± 15.7 78.3 ± 19.7
  1. std. dev. standard deviation
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Radiation Oncology

ISSN: 1748-717X

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