Recent Posts

Quantitative Prediction of Stone Fragility From Routine Dual Energy CT: Ex vivo proof of Feasibility

posted by | Oct 19, 2017

Previous studies have demonstrated a qualitative relationship between stone fragility and internal stone morphology. The goal of this study was to quantify morphologic features from dual-energy computed tomography (CT) images and assess their relationship to stone fragility. Read more

Dual-energy CT quantitative imaging: a comparison study between twin-beam and dual-source CT scanners

posted by | Oct 12, 2017

To assess image quality and to quantify the accuracy of relative electron densities (ρe ) and effective atomic numbers (Zeff ) for three dual-energy computed tomography (DECT) scanners: a novel single-source split-filter (i.e., twin-beam) and two dual-source scanners. Read more

Tailored Duration of Contrast Material Injection in High-Pitch Computed Tomographic Aortography With a Double-Level Test Bolus Method

posted by | Oct 5, 2017

To achieve the efficient usage of contrast material (CM) in high-pitch CT aortography, an appropriate duration of the CM injection is crucial. We used a modification of the double-level test bolus method for determination of proper injection duration with the aim of evaluating the image quality of tailored-duration CM injection … Read more

Sporadic insulinomas on volume perfusion CT: dynamic enhancement patterns and timing of optimal tumour-parenchyma contrast

posted by | Sep 28, 2017

To assess enhancement patterns of sporadic insulinomas on volume perfusion CT (VPCT), and to identify timing of optimal tumour-parenchyma contrast. Read more

Spectral optimization of iodine-enhanced CT: Quantifying the effect of tube voltage on image quality and radiation exposure determined at an anthropomorphic phantom

posted by Thomas Henzler, MD | Sep 21, 2017
Thomas Henzler, MD

To provide an experimental basis for spectral optimization of iodine-enhanced CT by a quantitative analysis of image quality and radiation dose characteristics consistently measured for a large variety of scan settings at an anthropomorphic phantom. Read more

Efficacy of a dynamic collimator for overranging dose reduction in a second- and third-generation dualsource CT scanner

posted by Ronald Booij | Sep 14, 2017
Ronald Booij

The purpose of this study was to assess the efficacy of the renewed dynamic collimator in a third-generation dualsource CT (DSCT) scanner and to determine the improvements over the second-generation scanner. Read more

Vertebral Compression Fractures: Third-Generation Dual-Energy CT for Detection of Bone Marrow Edema at Visual and Quantitative Analyses

posted by | Sep 7, 2017

To assess the diagnostic performance of a third-generation dual-energy computed tomographic (CT) virtual noncalcium (VNCa) technique for detection of traumatic bone marrow edema in patients with vertebral compression fractures. Read more

Stephan Achenbach, M.D.

Professor of cardiology –
Expert in Coronary CTA

Ronald Booij

Radiographer, Research and Innovation unit CT

Josef Matthias Kerl, M.D.

Fellow in Clinical Radiology –
Expert in CTA, pulmonary vein

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