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. Author manuscript; available in PMC: 2013 Jan 28.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2012 Jan 25;83(3):916–920. doi: 10.1016/j.ijrobp.2011.08.026

Table 2.

Normal tissue constraints for intensity-modulated radiotherapy treatment plans

Organ Volume (%) Dose (Gy)
Ipsilateral kidney 33 <18
Contralateral kidney 66 <18
Bowel 5 <54
10 50
15 <45
50 <20
Spinal cord Maximum dose 45
Liver 60 <30