The SOMATOM Definition CT scanner is the only Dual Source currently on the market.   It utilizes two x-ray sources as well as a dual detector system.  It can create motion free cardiac images with a scan range that can cover a distance of 79 inches (200cm).  The (ECG) synchronized imaging can be performed with 83-millisecond temporal resolution, independent of the heart rate, resulting in motion-free cardiac images. It reduces the need for Beta Blockers.  By using the dual source technology, Physicians can better differentiate, characterize, isolate and distinguish bone, soft tissue and fluid.