Fig. 3
From: A Nomogram to predict parotid gland overdose in head and neck IMRT
Parotid gland overdose assessment. The mean dose difference was calculated between the estimated cumulated dose (without replanning) and the planned dose, in each parotid gland (PG) (ipsilateral and contralateral), for each of the 20 patients. A dose difference with a positive or negative value corresponded to a PG overdose or under-dose, respectively. Predicted PG overdose calculated by the nomogram are represented by circles (ipsilateral PG) or diamonds (contralateral PG) (cf. Section 3.2)