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Are there any volumetric constraints associated with toxicity in the dose range that is moderately above prescription (i.e. 30-35 Gy range), when planning hippocampal-sparing whole brain radiation?  

While protocols describe using a D2% constraint, there is little description of what should happen to the DVH between 30-37.5 Gy.  It would be helpful to know what volume of brain receiving >30Gy is acceptable with this technique.



Answer from: Radiation Oncologist at Community Practice
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Radiation Oncologist at Mallory Radiotherapy, PLLC
I think the question is regarding concern over dos...
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