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Study
Positioning system
Imaging modality
Position error
2D-2D image registration for verification of set-up
Rosenthal 1995
Dental fixation
Ortogonal radiographs
2.3mm
±
1.6mm
Sweeny 2001
Vogely Bale Hohner head
Holder
Portal imaging
1.9mm
±
1.2mm
Kumar 2005
Gill-Thomas-Cosman
Portal imaging
1.8mm
±
0.8mm
Georg 2006
Brain Lab Mask
Portal imaging
1.3mm
±
0.9mm
3D-3D image registration for verification of set-up
Baumert 2005
Stereotactic mast
CT
3.7mm
±
0.8mm
Boda-Heggermann
2006
Scotch cast mask
CBCT
3.1mm
±
1.5mm
Guckenberger 2007
Scotch cast mask
CBCT
3.0mm
±
1.7mm
Masi 2008
Thermoplastic mask & Bite
block
CBCT
2.9mm
±
1.3mm
Bite-block
CBCT
3.2mm
±
1.5mm
Courtesy M. Guckenberger, ESTRO IGRT course
Set-up accuracy: interfraction motion
based on bony anatomy registration