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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