Radical stereotactic radiosurgery with real-time tumor motion tracking in the treatment of small peripheral lung tumors

Table 1 Critical central thoracic structure point dose limits

Critical Structure	Maximum Point Dose Limit (Gy) (total for 3 fractions)
Spinal cord	18
Left ventricle	18
Esophagus	24
Main bronchus	30
Trachea	30
Aorta	30

ISSN: 1748-717X