Treatment plan

Mean of max point dose (cGy)

Mean 95% prescription coverage

Mean dose homogeneity (D98%/D2%)

With breast board

4470 ± 116

98.77% ± 0.32%

0.8829 ± 0.0187

Without breast board

4849 ± 327

98.50% ± 0.95%

0.8299 ± 0.0571

Percent change when board is unaccounted

7.48% ± 5.67%

−0.29% ± 0.92%

−5.30% ± 4.75%

p Value

0.00001

0.1480

0.00003