Anand Narayan MD, PhD, Presenter: Nothing to Disclose

Pamela Tecce Johnson MD, Abstract Co-Author: Research funded, Becton, Dickinson and Company

Mahadevappa Mahesh MS, PhD, Abstract Co-Author: Royalties, Wolters Kluwer nv

Elliot K. Fishman MD, Abstract Co-Author: Research support, Siemens AG Advisory Board, Siemens AG Research support, General Electric Company Advisory Board, General Electric Company Co-founder, HipGraphics, Inc

Stefan L. Zimmerman MD, Abstract Co-Author: Nothing to Disclose

State of the art MDCT technology to evaluate coronary arteries and the aorta include high pitch CT scanners and wide area detectors. These two technologies use different strategies to capture a fast moving heart in a single rotation or a single heart beat.  The aim of this exhibit is to review the physics underlying these new CT scanners and familiarize readers with information necessary to guide scanner selection and protocol optimization to best take advantage of these new systems.

1. Introduction Review of relevant basic CT physics Technological challenges in evaluating coronaries and aorta 2. Next generation CT scanners- review of scanner hardware and physics High pitch CT scanners Wide area detector scanners Dual energy CT 3. Relative advantages and disadvantages of next generation scanners Temporal and spatial resolution optimization Dynamic perfusion imaging Radiation dose reduction Dual energy cardiovascular applications 4. Imaging protocols

After reviewing this exhibit, readers will gain an understanding of the principles behind the newest generation CT technology for evaluating the coronary arteries and the aorta, the advantages and disadvantages of these technologies, as well as protocol optimization to maximize utility of these new scanners.

Narayan, A, Johnson, P, Mahesh, M, Fishman, E, Zimmerman, S, New Generation Coronary and Aortic CT Scanners: What the Radiologist Needs to Know.  Radiological Society of North America 2013 Scientific Assembly and Annual Meeting, December 1 - December 6, 2013 ,Chicago IL. http://archive.rsna.org/2013/13016030.html