GE’s Revolution CT 256-Slice Scanner Offers Fast Speed, Low Dose

New 256-slice system offers faster speed, higher definition and lower dose


April 15, 2014
Revolution CT, computed tomography, 256 slice CT, GE Healthcare

The GE Healthcare Revolution computed tomography (CT) 256-slice scanner offers technology that provides excellent image quality and clinical capabilities through the convergence of coverage, spatial resolution and temporal resolution. CT still has challenges with patients that have high heart rate, metallic implants, and non-compliant patients. The Revolution CT is able to address these challenging patients by freezing cardiac motion in one heartbeat, reducing metal artifacts, and offering the potential for sedation-free CT scanning. The system also offers benefits for sensitive patient groups such as pediatric, renal insufficiency, trauma, and stroke. Revolution CT's convergence of technological advances include 16 cm whole organ coverage, best-in-class spatial resolution through the new Gemstone Clarity Detector, and a new gantry designed to image at 0.28 second rotation speed and tested to support rotation speeds up to 0.2 seconds in the future.  The impact of the technology includes:• Cardiology: One beat, motion-free cardiac in high definition at any heart rate with or without beta-blockers. This delivers the clinical information needed for the coronaries, myocardial perfusion and function with one contrast injection.• Oncology: Low-dose, whole organ diagnosis and follow up of organs such as the liver, kidneys, pancreas, etc. are enabled by dynamic acquisition modes.• Neurology: Rapid, comprehensive stroke assessment with whole brain perfusion and dynamic CT angiography at very low dose. ASiR-V, GE's next generation of iterative reconstruction technology also recently cleared by FDA, is designed to deliver reduced noise levels, improve low-contrast detectability, and routinely reduce dose up to 82 percent for patients of all ages with uncompromised image quality. This especially benefits pediatric and other patients considered more sensitive to radiation exposure. Clinicians can reduce patient anxiety with Revolution CT's Whisper Drive, soft ambient lighting, personalized gantry display, and bore pattern. Fast and low dose 70 kVp acquisitions for sedation free and minimal breath hold pediatric studies are also now possible. The U.S. Food and Drug Administration (FDA) granted 510(k) market clearance in April 2014.  For more information:

  • Carotid artery 3-D reconstruction created from a scan by the Revolution CT system.