2009 Model. Rare 20-Slice Definition-Series CT-Scanner with a high-power generator, NEW 7.3MHU X-Ray Tube in 2015. Software Version VA44A, Chiller, XR-29 Compliant. Large 31-inch (78 cm) gantry bore, high-scan speed, designed perfectly for high-patient throughput. In addition to the morphological imaging, with the unique Adaptive 4D spiral mode, the Definition AS 20 can offer functional imaging with perfusion capabilities of the brain and other organs and an extended coverage of up to 7 cm. Available Now!