Myrna Cobos Barco Godoy MD, Presenter: Research grant, Bayer AG

David Paul Naidich MD, Abstract Co-Author: Research grant, Siemens AG, Malvern PA Research Consultant, Siemens AG, Princeton, NJ Research Consultant, Spiration, Inc, Redmond, WA

Edson Marchiori MD, PhD, Abstract Co-Author: Nothing to Disclose

Christianne Leidecker PhD, Abstract Co-Author: Employee, Siemens AG

Bernhard Schmidt PhD, Abstract Co-Author: Nothing to Disclose

Ioannis Vlahos MBBS, Abstract Co-Author: Research grant, Bayer AG Support, Bayer AG Research Consultant, Siemens AG

Bernard Assadourian, Abstract Co-Author: Nothing to Disclose

et al, Abstract Co-Author: Nothing to Disclose

The aim of this study was to demonstrate the use of single acquisition dual energy MDCT in assessing a variety of aortic diseases, including aortic aneurysm, aortic dissection, penetrating atherosclerotic ulcer and post-surgical aorta.

A. Physical Principles B. Dual Energy MDCT Data Acquisition: Aortic Protocol C. Dual Energy Basic Post-Processing Technique D. Dual Energy Advanced Post-Processing Technique E. Advantages and Limitations  

Our initial experience shows that Dual Energy MDCT at 80 kVp increases vascular attenuation values and diagnostic quality for evaluation of the thoracic aorta, and allows for contrast volume and flow rate reduction. In addition, the generation of “Virtual Non-Contrast” images has the potential to substitute true pre-contrast images and, therefore, reduce radiation exposure; and advanced post-processing techniques permit new “angiographic” like images for visualizing aortic disease.   

Godoy, M, Naidich, D, Marchiori, E, Leidecker, C, Schmidt, B, Vlahos, I, Assadourian, B, et al, , Evaluation of Thoracic Aortic Abnormalities Using Single Acquisition Dual Energy MDCT: Initial Experience.  Radiological Society of North America 2008 Scientific Assembly and Annual Meeting, February 18 - February 20, 2008 ,Chicago IL. http://archive.rsna.org/2008/6016969.html