This fourth article of our Dual Energy series gives an overview of the most important clinical applications of Dual Energy, including color coding of contrast material, perfusion imaging, angiography, and differentiation of renal stones and tendons/ligaments. Read more

Scott Schonhover, technologist, USA, has sent the following question: DE Runoffs: Is anyone doing these either as research or in a clinical setting? If so is there a protocol for scanning and/or injection? I undertand that certain body habitus patients would exceed scan FOV’s. One of our doc’s is contemplating a research study on … Read more

The purpose of this study was to investigate the effect of low kilovoltage dual-source computed tomography coronary angiography (CTCA) on qualitative and quantitative image quality parameters and radiation dose. Dual-source CTCA with retrospective ECG gating was performed in 80 consecutive … Read more

The following question has been sent by Bellalize Steenkamp, radiographer, Unitas Hospital, South Africa: 1) Would you say that the DSCT is better equipped to do Paediatrics than the normal multi-slice CT? 2) In certain cases, due to the less invasive procedure, would you say it is more appropriate than doing an … Read more

Case history [A] 58-year-old men with 2-vessel CAD and several cardiovascular risk factors, e.g. long-term arterial hypertension, dyslipoproteinemia, was referred for Dual Source CT angiography. Question Dual Source CT angiography for re-evaluation of coronary arteries and potential detection of coronary artery stenoses. Diagnosis/Differential diagnosis [A] Left-ventricular hypertrophy (LVH) most likely due to long-term arterial hypertension; … Read more

Dual Source coronary CT angiography (cCTA) is not only faster than previous scanner generations and less invasive than cardiac catheterization, it also may in some cases more realiably localize proximal bypass anastomoses and provide more anatomic information crucial to the success of potential redo coronary artery bypass graft (CABG) surgery. Dual … Read more

Abstract The aim of this study was to assess the feasibility of a differentiation of iodine from other materials and of different body tissues using dual energy CT. Ten patients were scanned on a SOMATOM Definition Dual Source CT (DSCT; Siemens, Forchheim, Germany) system in dual energy mode at tube voltages … Read more