423 / 1084
Margin reduction …
IGRT does
NOT
mean that
margins can converge to zero!!!!!!!!!
margin recipes are still a necessity,
especially to cope with uncertainty in CTV
Engels B, Soete G, Verellen D, Storme G.
The PTV 2017 - D. Verellen
Conformal arc radiotherapy for prostate cancer: increased biochemical failure in patients
with distened rectum on the planning CT in spite of image guidance by implanted markers.
Int J Radiat Oncol Biol Phys 2009