Cervix BT - 2016

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 2

V 4

V 1

V 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

0

Proportional Volume [%}

1

2

3

4

Mayr NA, et al. Int J Radiat Oncol Biol Phys 2010