Dia 1

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

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

Set-up accuracy: interfraction motion

based on bony anatomy registration

Courtesy M. Guckenberger, ESTRO IGRT course