2017_SBRT_Course Book
Management of intrafraction motion
Rectal balloons
30 patients: 15 treated with balloon 15 treated without Monitoring of implanted electromagnetic transponders
Deviation % > 5 mm 3 mm
no balloon
with balloon
Time elapsed
ERB significantly reduces intrafraction prostate motion, and may in particular be beneficial for treatment sessions longer than 150 s.
Smeenk IJROBP 2012
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