Table 1.

Make and model of 3D imaging appliances used in the included articles.

Make and Model	Number of studies
O-Arm, Medtronic, USA	15
Iso-C 3D, Siemens, Germany	4
Airo, BrainLab, Germany	3
Somatom, Siemens, Germany	2
Arcadis Orbic 3D, Siemens, Germany	1
BodyTom, NeuroLogica- Samsung, USA	1
CereTom, NeuroLogica- Samsung, USA	1
CIOS Spin, Siemens, Germany	1
LightSpeed VCT, GE Healthcare, USA	1
Spine and Trauma iCT, BrainLab, Germany	1
Toshiba Medical systems iCT, Toshiba, Japan	1