Table 1.

Radiation dose-volume treatment results

DVH parameter	DVH goal	Results (mean)	Results (range)
Protocol-specified goals
PTV_Eval	V95% ≥ 95% of 38.5 Gy	97%	94%-100%
Whole breast	D38.5 Gy ≤ 35%	12%	1%-22%
Whole breast	D19.25 Gy ≤ 60%	41%	19%-59%
Contralateral breast	Dmax ≤ 1.15 Gy	<0.01 Gy	<0.01 Gy
Lung ipsilateral	V11.55 Gy ≤ 15%	2%	<0.1%-9.3%
Lung contralateral	V1.93 Gy ≤ 15%	<0.01 Gy	<0.01 Gy
Heart (right-sided)	V1.93 Gy ≤ 5%	<0.01%	<0.01%-0.03%
Heart (left-sided)	V1.93 Gy ≤ 40%	<0.01%	<0.01%-0.15%
Thyroid	Dmax ≤ 1.15 Gy	<0.01 Gy	<0.01 Gy
Additional dose-volume results
Left-sided patients
Heart	Mean	0.03 Gy	<0.01-0.19 Gy
Lung	V5	0.04%	<0.01%-0.14%
Lung	V20	<0.01%	<0.01%-0.04%
Right-sided patients
Heart	Mean	0.01 Gy	<0.01-0.15 Gy
Lung	V5	0.03%	<0.01%-0.12%
Lung	V20	<0.01%	<0.01%-0.05%

Abbreviations: DVH = dose-volume histogram; PTV_Eval = evaluation planning target volume.