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Table 2 Recommended dose constraints

From: Magnetic resonance guided adaptive stereotactic body radiotherapy for lung tumors in ultracentral location: the MAGELLAN trial (ARO 2021-3)

Dose constraints
Organ at risk Volume Maximum dose
Proximal bronchial tree 0.33 cm3  < 63.0 Gy
 < 105% prescribed dose
Non-GTV lung 1500 cm3  < 15.5 Gy
1000 cm3  < 16.5 Gy
 < 10%  ≥ 20 Gy (V20Gy)
Esophagus 0.5 cm3  < 43.5 Gy
Stomach and intestines 0.5 cm3  < 43.5 Gy
Heart 0.5 cm3  < 66.0 Gy
Aorta and major vessels 0.5 cm3  < 70.0 Gy
Spinal cord 0.1 cm3  < 35.0 Gy
Brachial plexus 0.1 cm3  < 39.0 Gy
  1. GTV gross tumor volume, Gy Gray