Maryam Etesami MD, Abstract Co-Author: Nothing to Disclose

Prabhakar Rajiah MD, FRCR, Presenter: Institutional Research Grant, Koninklijke Philips NV

1) To explain basic principles of dual energy CT and different available methods with emphasis on the novel dual layer spectral detector CT technology (SDCT) 2) To discuss the advantages and disadvantages of SDCT compared to conventional CT and other dual energy methods 3) To review multiple specific clinical applications of SDCT for different organ systems

1) Basic principles of dual energy CT 2) Different methods of dual energy CT imaging 3) Single source, dual layer detector spectral CT technique 4) Advantages of SDCT  • No need for pre-planning • Full availability of dose management tools;patient radiation dose • Elimination of time lag of sequential acquisitions, ideal for imaging moving tissue • Full field of view • Less artifact 5) Clinical advantages and applications • Increased sensitivity to contrast  -Improved image quality -Less contrast media administration -Oncologic lesion characterization -Improved PE evaluation • Virtual non-contrast image • Material characterization - Kidney stone composition -Gout tophi characterization •Differentiation of calcium from iodine -Enhanced CTA and cardiac studies -Improved automated bone removal -Calcium quantification on CT angiogram • Metallic artifact reduction • Molecular contrast agent imaging   6) Limitations

http://abstract.rsna.org/uploads/2014/14000264/14000264_xcdm.pdf

Etesami, M, Rajiah, P, Novel Spectral Detector CT—Techniques and Clinical Applications.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14000264.html