. 2017 Jan 24;18(2):9–14. doi: 10.1002/acm2.12038

Table 3.

A breakdown of relative contributions to the improved OAR sparing by the new objectives and optimizers, where total improvement = (D_clinical−D_PO)/D_clinical; objective contribution = (D_clinical−D_PRO)/D_clinical; and optimizer contribution = (D_PRO−D_PO)/D_clinical

	D_{50%_FH}	D_{mean_FH}	D_{50%_UB}	D_{mean_UB}
Total improvement (%)	32.72	24.34	31.62	23.49
Objective contribution (%)	30.93	22.80	27.88	20.85
Optimizer contribution (%)	1.79	1.54	3.74	2.64

D_50%, dose to the 50% volume of the structure; D_mean, mean dose; FH, femoral head, UB, urinary bladder; D_clinical, D_PO and D_PRO, dose parameters corresponding to the clinical, PO and PRO plans.