432 / 1224
Smeenk IJROBP 2012
Time elapsed
Deviation % >
5 mm
3 mm
Rectal balloons
Management of intrafraction motion
with balloon
no balloon
30 patients:
15 treated with balloon
15 treated without
Monitoring of implanted
electromagnetic
transponders
ERB significantly reduces
intrafraction prostate
motion, and may in
particular be beneficial
for treatment sessions
longer than 150 s.