Shima Aran MD, Presenter: Nothing to Disclose

Khalid Walid Shaqdan MD, Abstract Co-Author: Nothing to Disclose

Avinash Ranesh Kambadakone MD, FRCR, Abstract Co-Author: Nothing to Disclose

Elmira Hassanzadeh MD, Abstract Co-Author: Nothing to Disclose

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

Hani H. Abujudeh MD, MBA, Abstract Co-Author: Research Grant, Bracco Group Consultant, RCG HealthCare Consulting Author, Oxford University Press

Dual-energy CT (DECT) adds many exciting new applications to single-energy MDCT as the imaging modality of choice for detecting renal calculi. DECT allows characterization of renal stone composition which is clinically important as it allows selection of targeted preventive approaches and stone-specific treatment options. Also using DECT, calculi are detectable on nephrographic phase imaging or in contrast-filled collecting systems using the iodine subtraction techniques. Calculation of water content using spectral imaging is useful to diagnose urinary obstruction. We plan to expose radiologists to a series of challenging cases to understand how this unique and clinically relevant modality can facilitate diagnosis and management of renal calculi.

1. Basic principles of DECT on the basis of photoelectric and Compton interactions as well as material decomposition. 2. Available techniques of DE data acquisition, for example, dual source CT scanners, fast kilovoltage switching and sandwich detector tech¬niques. 3. Image processing and reconstruction of DECT data. 4. Clinical application of DECT for diagnosis and management of renal calculi. 5. Sample cases. 6. Limitations of DECT such as the effects on image quality, and radiation dose.  

http://abstract.rsna.org/uploads/2014/14004446/14004446_vhjo.pdf

Aran, S, Shaqdan, K, Kambadakone, A, Hassanzadeh, E, Flores, E, Abujudeh, H, Dual-energy CT Characterization of Urinary Calculi: Basic Principles, Applications and Limitations.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004446.html