Gynae BT_Lucknow_2018

Volumetric tumour regression: FIGO stage IIB/IIIB cervical cancer, large tumor at diagnosis subgroup from E MBRACE data base, N=183/345 continued

Group 3 Small, moderate response

At diagnosis

At brachytherapy

N=123 (26%)

Good response

Mean GTV D 23.9 cm 3

Mean CTV HR 29.9 cm 3

N=68

Mean GTV 45.2 cm 3

Mean HR CTV 24.6 cm 3

Moderate response N=147 (31%) Group 4 Large, moderate response

Mean GTV D 73.4 cm 3

Mean CTV HR 38.5 cm 3

N=98

Mean GTV 76.7 cm 3

Mean HR CTV 40.1 cm 3

Group 5 Poor response

Poor response N=75 (16%)

N=17

Mean GTV 62.1 cm 3 Mean GTV D 79.4 cm 3

Mean HR CTV 57.8 cm 3 Mean CTV HR 59.5 cm 3

GTV HR CTV

Jastaniyah N, Yoshida K et al ; fellows at MUW/AKH Vienna, ASTRO 2014, IJROBP 2016