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Table 4 Correlation of the PTV size with the respective dose to the contralateral hippocampus

From: Hippocampal sparing radiotherapy for glioblastoma patients: a planning study using volumetric modulated arc therapy

Parameter Spearman’s ρ p-value
3D-CRT
Mean Dose 0.21 NS (p = 0.30)
gEUD 0.33 NS (p = 0.10)
V 15Gy/9.4Gy(EQD2) 0.11 NS (p = 0.59)
VMAT
Mean dose 0.44 p = 0.02
gEUD 0.47 p = 0.01
V 15Gy/9.4Gy(EQD2) 0.41 p = 0.01