2017_SBRT_Course Book
Management of intrafraction motion
Rectal balloons disadvantages
Dosimetric gain is mostly for 3D CRT (i.e. 4-field box)
Irritation of the anal canal (hemorroids) Cho KJMS 2009
Complex procedure: may require frequent adjustments to avoid systematic errors or deformations (Jones Med Phys 2012, Miralbell IJROBP 2010)
Increases treatment time
Mixed experience, complex and invasive procedure with questionable benefit.
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