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- QUANTUM™ CT Overlays
QUANTUM™ CT Overlays
QUANTUM CT Overlays create a flat, indexed surface ready for RT simulation. They are thin and lightweight, varying from 7 - 15 kg depending on the model. Varian Exact® Indexing comes standard.
At just 51.4 cm (20.25 in) wide and 1.6 cm (5/8 in) thick, the QUANTUM™ CT Overlay is both narrower and thinner than most other indexed CT overlays. This ultrathin profile increases the usable bore space.
Available Overlays

Overlay - GE HiSpeed (for 219 cm long cradle) (RT-4550GEH)
Overlay - GE HiSpeed CTi or GE LightSpeed (for 231 cm long cradle) (RT-4550GEL)
Overlay - GE ProSpeed (for 207 cm long cradle) (RT-4550GEP)
Overlay - LS VCT (for 262 cm long cradle) (RT-4550GEC)
Overlay - Siemens Somatom Balance, Emotion, Emotion Duo or Espirit+ (for 217 cm long cradle) (RT-4550SS2)
Overlay - Philips Brilliance (for 250 cm long cradle) (RT-4550PBR)
Overlay - Toshiba Aquillion (for 215 cm long cradle) (RT-4550TAQ)
QUANTUM™ CT Overlay for Canon Aquilion Scanner for 244cm long cradle (RT-4550TAQ2)
QUANTUM™ CT Overlay - Canon Cartesion and Celesteion Scanner (RT-4550CN01)
Overlay - Siemens Somatom Plus 4, Sensation 4/16, Volume Zoom/Access™, and Philips Picker MX8000 (for 244 cm long cradle) (RT-4550SS1)
Overlay - Siemens Somatom Definition 64 (for 240 cm long cradle) (RT-4550SS3)
Overlay - LightSpeed RT (for 207 cm long cradle) (RT-4550GER)
Overlay - Siemens Somatom Definition AS Open (1600/PHS1B) (RT-4550SS4)