Gynae BT 2017
S ize of the tumor at Brachytherapy
Volume change during treatment
Regression to P roportional V olume: PV = V x / V 1 [%]
N= 115
BT
EBRT
stage IB2 - IVA
V
V
V
V
2
4
1
3
PV = 100 %
PV = 87 %
PV = 31 %
PV = 40 %
100
•Rapid response: 2.2% / Gy •Steep slope •Low AUC (24 %)
Alive & well at 7 y
80
60
40
20
Proportional Volume [%}
0
1
2
3
4
Mayr NA, et al. Int J Radiat Oncol Biol Phys 2010
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