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Table 3 Correlation between the anatomical/dosimetric parameters (calculated on CT0 and CT1) and the PG overdose

From: A Nomogram to predict parotid gland overdose in head and neck IMRT

Analyzed parameters

r2

p-value

CTV70_CT0

0.32

0.038

∆CTV70

−0.46

0.004

∆DosePG

0.72

<0.001

DmeanPG_CT1

0.49

0.002

DmeanPG_CT1/DmeanPG_CT0

0.70

<0.001

  1. r2 = Pearson correlation value, DmeanPG = Mean PG dose (Gy), _CT0 = on the planning CT (CT0), _CT1 = CT at the first week (CT1), ∆ = difference of the parameter between CT1 and CT0
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Radiation Oncology

ISSN: 1748-717X

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