Brain SBRT: required accuracy
The 12-month cumulative incidence rates of LF with and without margin were 3% and 16%, respectively
(P=0.042). The 12-month toxicity rates with and without margin were 3% and 8%, respectively (P=0.27).
Choi IJROBP 2012, 84 p336
2 mm margin, Aquaplast mask, Cyberknife treatment, 112 pats
median marginal dose of 20 Gy (range, 12-30 Gy) in 1-5 fractions, prescribed to the median
79% isodose line (range, 60%-90%)