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Fig. 2 | Radiation Oncology

Fig. 2

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

Fig. 2

Comparison of VMAT (a) and 3D-CRT (b) dose distributions for one patient. OARs are shown with their avoidance margins. Dose constraints for optic nerve (violet), chiasm (light brown, only the 3 mm expansion is visible in this slice) and the brain stem (green) prevent the 95 % isodose from completely covering the PTV (red). The reduced dose to the contralateral hippocampus (yellow) can be seen in the 30 % isodose line. The 5Gy isodose line shows that the dose to the lenses was limited to 5Gy

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Radiation Oncology

ISSN: 1748-717X

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