Alexi Otrakji MD, Presenter: Nothing to Disclose

Roberto Lo Gullo MD, Abstract Co-Author: Nothing to Disclose

Andrew Primak PhD, Abstract Co-Author: Employee, Siemens AG

Subba Rao Digumarthy MD, Abstract Co-Author: Nothing to Disclose

Mannudeep K. S. Kalra MD, Abstract Co-Author: Nothing to Disclose

Jo-Anne O. Shepard MD, Abstract Co-Author: Consultant, Agfa-Gevaert Group

Efren Jesus Flores MD, Abstract Co-Author: Nothing to Disclose

Sarabjeet Singh MD, Abstract Co-Author: Research Grant, Siemens AG Research Grant, Toshiba Corporation Research Grant, General Electric Company Research Grant, Koninklijke Philips NV

Routine use of DECT for routine chest examinations is feasible with radiation dose neutral scanning protocols. In our institutions, contrast enhanced chest CT are performed with DECT, which can provide substantial clinical information in many clinical situations. We use our institutional experience to highlight following teaching points: A. Distinct appearances of various pulmonary processes on DECT images including pulmonary embolism, pneumonia, atelectasis, and pulmonary masses. B. Use of perfused blood volume or iodine map (PBV/I) images for evaluation of pulmonary findings: What nuclear medicine perfusion scans teach us. C. Appropriate use of quantitative spectral and iodine uptake values in DECT. D. Multivendor scanning technique and radiation dose with DECT  

All included cases, images and data will be from our institutional experience. Blended, monoenergetic and PBV/I images will be used for describing a host of findings including 1. Normal chest on DECT 2. Pulmonary embolism with and without defects and infarcts 3. Chronic pulmonary thrombo-embolic disease 4. Pneumonia 5. Atelectasis 6. Pulmonary and mediastinal masses 7. Post radiofrequency appearance of lung masses on DECT 8. Lung abscess on DECT 9. Pulmonary lucencies on DECT (emphysema, lung cysts, and air trapping)  

http://abstract.rsna.org/uploads/2014/14007633/14007633_uvdo.pdf

Otrakji, A, Lo Gullo, R, Primak, A, Digumarthy, S, Kalra, M, Shepard, J, Flores, E, Singh, S, Dual Energy CT (DECT) Cinematography on Spectrum of Thoracic Abnormalities: How Things Look on DECT Images.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14007633.html