Achille Mileto MD, Presenter: Nothing to Disclose

Daniele Marin MD, Abstract Co-Author: Nothing to Disclose

Lisa Mei-ling Ho MD, Abstract Co-Author: Nothing to Disclose

Tracy Anne Jaffe MD, Abstract Co-Author: Nothing to Disclose

Rendon C. Nelson MD, Abstract Co-Author: Consultant, General Electric Company Consultant, Nemoto Kyorindo Co, Ltd Consultant, VoxelMetrix, LLC Research support, Bracco Group Research support, Becton, Dickinson and Company Speakers Bureau, Siemens AG Royalties, Wolters Kluwer nv

TP1:Conventional CT numbers represent the normalization of the linear attenuation coefficient to air and water].  TP2:By a near-simultaneous illumination of materials at two different kilovoltage levels, dual energy MDCT can enhance variances in slope of characteristic x-ray attenuation curves of materials].  TP3:Dual energy MDCT provides more accurate quantitative data compared to conventional CT numbers].  

Introduction: This education exhibit illustrates the basic concepts underlying dual energy MDCT quantitative imaging and its applications in abdominal imaging.  Theoretic Concept: Back to the Future. From Polychromatic to Monochromatic Imaging: Dual energy MDCT data can be utilized to obtain virtual monochromatic data which have the potential for mitigating beam-hardening and energy shifting phenomena, therefore providing more accurate quantitative data. Dual Energy MDCT Quantitative Imaging Applications in the Abdomen Virtual Monochromatic Data Display: a) Liver; b) Pancreas; c) Kidney (Figure 1); d) Adrenal Glands; e) Vascular  Material Density Analysis: a) Liver (Figure 2); b) Pancreas; c) Kidney  (Figure 3); d) Adrenal Glands (Figures 4,5); e) Vascular  Conclusion: Dual energy MDCT quantitative imaging may represent a paradigm shift for the abdominal imaging practice.  

http://abstract.rsna.org/uploads/2014/14015313/14015313_mez2.pdf

Mileto, A, Marin, D, Ho, L, Jaffe, T, Nelson, R, Dual Energy MDCT Quantitative Imaging in the Abdomen: What Can It Do to Improve Your Practice?.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14015313.html