2078-2079 / 3581
Image-guidance for whole breast (+/- nodes)
kV CBCT
• EPID field images (i.e. not orthgonal)
underestimate bony set-up errors by
20% to 50%
EPID
• Difference probably insignificant for
tangential whole breast irradiation
• Loco-regional treatment or more
advanced techniques (SIB? IMRT?)
could benefit from a more accurate
set up.
Topolnjak IJROBP 2010