AROI-ESTRO GYN Teaching Course

Imaging protocols MRI and CT Key issues for image-guided radiotherapy

Quantitative tumor regression

Courtesy : Johannes Dimopoulos

EBRT: tumor regression 75% Brachytherapy: tumor regression 10%

easy to predict

70

61,0

60

50

EBRT

40

30

16,3

20 Absolute Vol (cm³)

10,5

9,0

7,9

BT

10

0

prior to therapy 1. brachytherapy 2. brachytherapy 3. brachytherapy 4. brachytherapy

Dimopoulos et al. Strahlenther Onkol 2009