864 / 1084
Organ/ROI
Conventional (AP-PA)
IMRT
Left kidney
Mean dose (
SD)
34
±
8 Gy
22
±
3 Gy*
Left kidney
V20
Gy
(
SD)
77
±
19 %
54
±
11 %**
Right kidney
Mean dose (
SD)
10
±
5 Gy
11
±
2 Gy
Advanced radiation techniques reduce the dose to
both kidneys
Right kidney
V20
Gy
(
SD)
17
±
11 %
9
±
5 %
Liver
Mean dose (Gy
SD)
14.6
±
3.2
18.2
±
2.0
Liver
V30 (%
SD)
26.1
±
6.1
21.4
±
5.4
PTV V95%
(%
SD)
94.9
±
2.5
97.5
±
1.5