How do you approach treatment of an optic nerve sheath meningioma?
What dose/fractionation do you prefer? What is the maximum dose that you will allow to the optic nerve and chiasm?
Answer from: Radiation Oncologist at Academic Institution
I typically do 50.4 in 28 fractions with a stereotactic technique. We use both co-planar and non-coplanar arcs. I keep the optics point max to 54 Gy. Several single institution series including: MacLean et al. IJROBP 2013, Bloch et al. (UCSF) JCNeuroSci 2012, Ratnayake et al. (Australia) JCNeur...
Comments
Radiation Oncologist at Radiology Associates Hollywood Thank you very much, Sri.
Radiation Oncologist at University of Louisville School of Medicine I agree. In fact many patients could have objectiv...
Radiation Oncologist at GammaWest Cancer Services Radiation therapy is superior to surgery, particul...
Radiation Oncologist at Ohio State University James Cancer Center Agree with all the above. Dr Sanghvi's dosimetric ...
Radiation Oncologist at University of Colorado School of Medicine For optic chiasm meningiomas I typically use 48.6G...
Radiation Oncologist at Fox Chase Cancer Center Agree with these principles. Once the nerve has be...
Radiation Oncologist at University of Washington School of Medicine I typically go to 50.4 Gy in 28 fractions and limi...
Answer from: Radiation Oncologist at Academic Institution
We have been treating optic nerve sheet meningiomas (ONSM) at Jefferson for over two decades with SRT technique, delivering a dose of 5400 cGy in 180 cGy daily fractions, unless the tumor has a significant posterior extension toward the anterior clinoid/chiasm, in which case a lower dose of 5040-522...
Thank you very much, Sri.
I agree. In fact many patients could have objectiv...
Radiation therapy is superior to surgery, particul...
Agree with all the above. Dr Sanghvi's dosimetric ...
For optic chiasm meningiomas I typically use 48.6G...
Agree with these principles. Once the nerve has be...
I typically go to 50.4 Gy in 28 fractions and limi...