Background Dual-source computed tomography (DSCT) was introduced with significant hardware and software changes compared with single-source CT (SSCT), resulting in improved temporal resolution (83 ms) and the potential for improved image quality. The effect of these changes on radiation dose requirements for coronary CT angiography in clinical practice has not been … Read more

Abstract Objective: Triple phase (non-contrast, arterial, venous) single energy CT (SECT) scans are often used to monitor patients after endovascular thoracoabdominal aortic aneurysm repair. We investigated the feasibility of replacing non-contrast and arterial phase SECT scans with a single arterial phase dual energy CT (DECT) scan and generating virtual non-contrast images. Methods: … Read more

Abstract Current evidence and most pertinent literature on the radiation dose of cardiac computed tomography (CT) for the noninvasive assessment of coronary artery disease are reviewed. The various means for adjusting CT protocols to lower the radiation to a level that is as low as reasonably achievable are discussed. It … Read more

The introduction of the dual-source technique in 2005 has led to a revival of Dual Energy computed tomography. The configuration of the scanner allows for the simultaneous acquisition of two different energy spectra, thereby resolving the image co-registration problems of previous CT systems.   We are proud to present an introductory technical … Read more

To overcome the limitations of the classical volume scoring method for quantifying coronary calcifications, including accuracy, variability between examinations, and dependency on plaque density and acquisition parameters, a mesh-based volume measurement method has been developed. It was evaluated and compared with the classical volume scoring method for accuracy, i.e., the normalized … Read more