Topics:
Radiation Oncology • Neuro-Oncology
What constraints do you use for the normal brain when treating large CNS tumors with standard fractionation?
Answer from: Radiation Oncologist at Academic Institution
With photon therapy, we use guidance (not absolute), using the following principles, when using 1.8 to 2 Gy per fraction:
Lenses max dose 7-10Gy
Optic Chiasm and optic nerves max dose < 60Gy without chemotherapy and 56Gy with chemotherapy.
Retina max dose < 50Gy with...
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