Liqin Zhao MD, Presenter: Nothing to Disclose

Zhen Jane Wang MD, Abstract Co-Author: Nothing to Disclose

So Yeon Kim MD, Abstract Co-Author: Nothing to Disclose

En-Haw Wu MD, Abstract Co-Author: Nothing to Disclose

Wei-Chou Chang MD, Abstract Co-Author: Nothing to Disclose

Jack Lambert PhD, Abstract Co-Author: Nothing to Disclose

Benjamin M. Yeh MD, Abstract Co-Author: Research Grant, General Electric Company Consultant, General Electric Company

To review basic principles of dual energy CT (DECT) for clinical application To learn how dual energy CT gives added value compared with conventional CT for bowel lumen evaluation To learn the benefits and different dual energy CT reformations for bowel evaluation To show critical pitfalls in dual energy CT for bowel evaluaion To demonstrate the potential value of novel bowel CT contrast materials for use with dual energy CT  

Basic principles of DECT — Relative X-ray attenuation of different materials — Material decomposition images for iodine and water separation — Effective Z — DECT abdominal protocol for rapid kV switching scanner Problem solving with DECT for challenging conventional CT bowel cases — Bowel masses — Gastrointestinal bleeding — Pills and over the counter abdominal pain medications — Peritoneal implants — Metal and beam hardening artifact Pitfalls of dual energy CT imaging of bowel — Artifacts of material decomposition that may mimic severe bowel disease — Pitfalls of effective Z analysis Future Directions — Potential benefits of novel bowel contrast agents  

http://abstract.rsna.org/uploads/2014/14009529/14009529_8hgz.pdf

Zhao, L, Wang, Z, Kim, S, Wu, E, Chang, W, Lambert, J, Yeh, B, Dual Energy CT of the Intestines: Pearls and Pitfalls.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14009529.html