The scanners became available in June 2008 and feature a 78-cm gantry opening designed to accommodate larger patients. The systems include features to reduce dose while providing image resolution at the 0.24-mm level.
Definition AS+ is a single-source multislice scanner that offers adaptive scanning technology and comes in a 128-slice configuration. Definition AS comes in 40- and 64-detector-row models that are upgradable to 128 slices.
Also look for the company to tout Somatom Definition Dual Source, which uses the company's novel dual-source technology. The scanner sports a 78-cm gantry opening, up to 660 lb of table capacity, two 30-MHU tubes, a total of 160 kW power, and 83 msec temporal resolution.
![Images show the pectoralis muscles of a healthy male individual who never smoked (age, 66 years; height, 178 cm; body mass index [BMI, calculated as weight in kilograms divided by height in meters squared], 28.4; number of cigarette pack-years, 0; forced expiratory volume in 1 second [FEV1], 97.6% predicted; FEV1: forced vital capacity [FVC] ratio, 0.71; pectoralis muscle area [PMA], 59.4 cm2; pectoralis muscle volume [PMV], 764 cm3) and a male individual with a smoking history and chronic obstructive pulmonary disorder (COPD) (age, 66 years; height, 178 cm; BMI, 27.5; number of cigarette pack-years, 43.2, FEV1, 48% predicted; FEV1:FVC, 0.56; PMA, 35 cm2; PMV, 480.8 cm3) from the Canadian Cohort Obstructive Lung Disease (i.e., CanCOLD) study. The CT image is shown in the axial plane. The PMV is automatically extracted using the developed deep learning model and overlayed onto the lungs for visual clarity.](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/03/genkin.25LqljVF0y.jpg?auto=format%2Ccompress&crop=focalpoint&dpr=2&fit=crop&h=167&q=70&w=250)
