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Noise-optimized virtual monoenergetic dual-energy computed tomography: optimization of kiloelectron volt settings in patients with gastrointestinal stromal tumors

posted by Julian L. Wichmann, M.D. | Jan 9, 2018
Julian L. Wichmann, M.D.

The aim of this study was to evaluate the impact of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique on quantitative and qualitative image analysis in patients with gastrointestinal stromal tumors (GISTs) at dualenergy computed tomography (DECT) of the abdomen. Read more

Construction of Realistic Liver Phantoms from Patient Images using 3D Printer and Its Application in CTImage Quality Assessment

posted by | Jan 2, 2018

The purpose of this study is to use 3D printing techniques to construct a realistic liver phantom with heterogeneous background and anatomic structures from patient CT images, and to use the phantom to assess image quality with filtered backprojection and iterative reconstruction algorithms. Read more

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

Reducing Iodine Contrast Volume in CT Angiography of the Abdominal Aorta Using Integrated Tube Potential Selection and Weight-Based Method Without Compromising Image Quality

posted by | Aug 31, 2017

The purpose of this study is to determine whether image quality was maintained when a weight-based protocol incorporating tube potential selection was used to select lower iodine contrast volumes for aortic CT angiography (CTA). Read more

Low-dose abdominal CT for detection of urinary stone disease – Impact of additional spectral shaping of the X-ray beam on image quality and dose parameters

posted by | Jul 27, 2017

To evaluate a novel tin filter-based abdominal CT protocol for urolithiasis in terms of image quality and CT dose parameters. Read more

Correlation between Dual-Energy and Perfusion CT in Patients with Hepatocellular Carcinoma.

posted by Hatem Alkadhi, M.D., M.P.H., E.B.C.R. | Feb 6, 2017
Hatem Alkadhi, M.D., M.P.H., E.B.C.R.

Purpose: To develop a dual-energy contrast media-enhanced computed tomographic (CT) protocol by using time-attenuation curves from previously acquired perfusion CT data and to evaluate prospectively the relationship between iodine enhancement metrics at dual-energy CT and perfusion CT parameters in patients with hepatocellular carcinoma (HCC). Read more

White Paper of the Society of Computed Body Tomography and Magnetic Resonance on Dual-Energy CT, Part 4: Abdominal and Pelvic Applications.

posted by Carlo Nicola De Cecco, M.D., PhD | Feb 1, 2017
Carlo Nicola De Cecco, M.D., PhD

This article, part 4, discusses DECT for abdominal and pelvic applications and, at the end of each, will offer our consensus opinions on the current clinical utility of the application and opportunities for further research. Read more

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