1252 / 1778
•
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
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
taken from GEC ESTRO Handbook of Brachytherapy
target
target at level of point A
Volume Effect of Intracavitary Brachytherapy