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Table 1 Constraints given by the SHARE and NSABP/RTOG protocols used to optimize all treatment plans

From: Accelerated partial breast irradiation using robotic radiotherapy: a dosimetric comparison with tomotherapy and three-dimensional conformal radiotherapy

PTV

Dmax < 44 Gy

D99% ≥ 38Gy

D95% ou D90% ≥ 40 Gy

Homolateral lung

V20Gy < 1.3 %

V12Gy < 15 %

V10Gy < 5.7 %

V5Gy < 8 %

Contralateral lung

V20Gy < 1 %

V10Gy < 2 %

V5Gy < 3 %

V2Gy < 15 %

Heart

V20Gy < 0.5 %

V10Gy < 1 %

V5Gy < 4.1 %

V2Gy < 5 % for left lesions

V2Gy < 40 % for right lesions

Contralateral breast

Dmax < 3 % of prescribed dose (Dmax < 1.3 Gy)

NTBV

V20Gy < 50 %

V18Gy <60 %