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Table 2 Dose constraints used for the hypofractionated schedules of stereotactic irradiation

From: Robotic radiosurgery versus micro-multileaf collimator: a dosimetric comparison for large or critically located arteriovenous malformations

Organ at risk Maximum dose (Gy), three fractions regimen Maximum dose (Gy), four fractions regimen
Brainstem 7.23 6.5
Optic chiasm 6.5 6
Optic nerves 6.5 6
Optic tracts 6.5 6
Lenses 0.5 0.5
Eyeballs 2 2
Pituitary 6 5.5