Knowledge-based radiation therapy (KBRT) treatment planning versus planning by experts: validation of a KBRT algorithm for prostate cancer treatment planning

Table 2 Summary of the organ doses (mean ± standard deviation) of the KBRT and expert plans. All doses are normalized to dose that is prescribed to the target volume. The Wilcoxon test shows significantly lower bladder dose for the KBRT plans (at D₃₀), as well as lower rectal dose (at D₁₀ and D₃₀) for the expert plans

Organ volume [%]	Bladder			Rectum
Organ volume [%]	Mean organ dose of KBRT plans [%]	Mean organ dose of expert plans [%]	Mean organ dose difference (KBRT - expert)	Mean organ dose of KBRT plans [%]	Mean organ dose of expert plans [%]	Mean organ dose difference (KBRT- expert)
10	98.4 ± 4.4	98.3 ± 5.0	0.1 ± 2.9	93.0 ± 7.9	90.1 ± 9.5	3.0 ± 4.5
30	70 ± 25	74 ± 22	−3.0 ± 6.3	63 ± 17	57 ± 16	5.6 ± 8.1
50	44 ± 30	46 ± 29	−2.7 ± 9.1	39 ± 13	36.8 ± 9.9	2.4 ± 7.5
70	24 ± 22	24 ± 19	0.0 ± 7.1	24.6 ± 9.0	24.8 ± 7.1	−0.3 ± 5.4
90	11 ± 12	9.8 ± 8.7	1.0 ± 6.2	11.9 ± 6.2	12.6 ± 6.8	−0.7 ± 3.4

ISSN: 1748-717X