Figure 3From: Neural stem cell sparing by linac based intensity modulated stereotactic radiotherapy in intracranial tumors Mean biologic effective doses (BED Gy 2, linear quadratic model, alpha-beta ratio: 2) at the hippocampus and the subventricular zones ipsi- and contralateral for topographic groups A-D depending on the planning mode not optimized, IMRT-7 or IMRT-14 (definition see text). Back to article page