189 / 1544
Frameless: targeting
19
Cone-‐beam CT
l
3D error < 1mm
l
Fus i on er ror was not
observed
Orthogonal X-‐rays
l
3D error < 1mm
l
Fusion error in 3/102 pa,ents
but corrected by manual
adjustment
IJROBP 2007;67(4):1220-1228 Radiotherapy and Oncology 2012;95:109–115