What dose and expansion of GTV is recommended for a low grade glioma?

Topics: Radiation Oncology • Neuro-Oncology

In a large unresectable grade 2 astrocytoma of the temporal lobe, what dose and GTV margin should be used?

Answer from: Radiation Oncologist at Community Practice

I think doses between 45-54 Gy are probably reasonable for low grade gliomas when electing to treat with RT. Several studies have not shown a benefit with dose escalation in the treatment of low grade gliomas (EORTC 45 Gy vs 59.4 Gy; Intergroup 50.4 Gy vs 64.8 Gy). In terms of treatment volumes, RTO...

Comments

Radiation Oncologist at Stroger Hospital
Agree with 1 cm GTV to CTV to PTV.

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