1097 / 1674
Target registration error (TRE) for different image guided techniques
12 patients with four methods of image guidance
laser-based setup
with patient tattoos
orthogonal kV imaging
of chest wall
kV imaging of clips
3D surface imaging
of the breast with video capture
TRE
= the magnitude of the 3D vector
described by the LAT, LONG and VERT
components of the initial setup corrections
LAT
LONG
VERT
Gierga et al. IJROBP 70:1239-1246. 2008