Table 1 Dosimetric constraints for organs at risk.

From: Correlation between toxicity and dosimetric parameters for adjuvant intensity modulated radiation therapy of breast cancer: a prospective study

Organ at risk

Constraint

Spinal cord

D2% < 15 Gy

Heart (left breast)

V15 < 20%

V20 < 15%

V25 < 10%

Ipsilateral lung

V15 < 50%

V20 < 35%

V30 < 20%

V35 < 15%

Contralateral lung

V10 < 50%

V12 < 35%

V15 < 20%

Contralateral breast

V5 < 50%

V7 < 35%

V10 < 20%

V20 < 15%

  1. Vx volume receiving × dose (gray); % of the organ at risk.
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