Fuminari Tatsugami, Presenter: Nothing to Disclose

Toru Higaki PhD, Abstract Co-Author: Nothing to Disclose

Masao Kiguchi RT, Abstract Co-Author: Nothing to Disclose

So Tsushima, Abstract Co-Author: Employee, Toshiba Corporation

Akira Taniguchi RT, Abstract Co-Author: Employee, Toshiba Corporation

Kazuo Awai MD, Abstract Co-Author: Research Grant, Toshiba Corporation Research Grant, Hitachi Ltd Research Grant, Bayer AG Research Consultant, DAIICHI SANKYO Group Research Grant, Eisai Co, Ltd

Yoko Kaichi, Abstract Co-Author: Nothing to Disclose

1. Dual energy CT, in which the subject is scanned at two different energies (tube voltages), can be used to perform material decomposition based on the differences in CT number at different energies. 2. Novel analysis software which utilizes raw data-based dual energy data has been developed on a 320-detector CT scanner. 3. In raw data-based dual energy CT imaging, beam-hardening artifacts are reduced as compared with image-based dual energy CT imaging. 4. Electron densities and effective atomic numbers can be determined with high accuracy by raw data-based dual energy analysis with a 320-detector CT scanner.

1. Easy understanding of the principles of the dual energy imaging - image-based analysis - raw data-based analysis 2. Current applications of the dual energy imaging - improvement of beam-hardening artifacts - monochromatic images and best CNR image - material decomposition - generation of iodine maps and virtual non-contrast images 3. New technologies obtained with raw data-based dual energy analysis - effective atomic number analysis - electron density analysis 4. Advantage of the dual energy imaging using a 320-detector CT scanner 5. Clinical case presentation  

http://abstract.rsna.org/uploads/2014/14003849/14003849_5a8y.pdf

Tatsugami, F, Higaki, T, Kiguchi, M, Tsushima, S, Taniguchi, A, Awai, K, Kaichi, Y, Understanding General Principles and New Technologies at Dual Energy CT.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003849.html