1064 / 1674
Beam trajectories (112-182)
PTV (green) + 70%, 50%, 30% isodoses
APBI with Cyberknife
Real-time tracking: PTV = CTV +
2 mm margin
Vermeulen et al. Front Oncol 1:43. 2011
-
9 patients, RTOG-0423 protocol, 30 Gy in 5 fractions or 34 Gy in 10 fractions
- gold fiducial markers into cavity wall ->
CyberKnife Synchrony tracking
- CyberKnife is a
suitable device
for delivering APBI with achievable normal tissue constraints
- the treatment time is
long
(appr. 60 min)