Page 11 - Brachytherapy
P. 11
COMPARISON BETWEEN PERMANENT
AND TEMPORARY TREATMENT
*brachytherapy*
PERMANENT T E M P O R A R Y
Low dose radiation (LDR) High dose radiation (HDR)
K n o w n a s
Iodine-125 Iridium-195
T y p e o f s o u r c e s
Palladium-103
u s e d
About a quarter of inch long and The seed called as iridium wire. It
as thick as lead of mechanical comes with thin catheters and has
S i z e o f s e e d diameter of 1.9 mm
pencil
Dose is delivered over the Dose is delivered over a
D u r a t i o n o f short period of time and the source
lifetime of the source until
t r e a t m e n t are removed after the prescribed
complete decay
dose has reached 7
