Cervix BT - 2016

• With intracavitary brachytherapy a very heterogenous dose is applied to target and organs at risk (steep dose gradient) • significant change in dose within a few millimeters Volume Effect of Intracavitary Brachytherapy

target at level of point A

target

taken from GEC ESTRO Handbook of Brachytherapy

Variation of dose along the lateral axis of EBRT (full line) vs. intracavitary BT (dotted line) taken from ICRU Report 38

Standard dose distribution with a tandem-ring applicator

BT-GYN Teaching Course

D. Berger