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Integrating CT Myocardial Perfusion and CT-FFR in the Work-Up of Coronary Artery Disease

posted by dsct.com | Jan 16, 2018
dsct.com

The aim of this study was to investigate the individual and combined accuracy of dynamic computed tomography (CT) myocardial perfusion imaging (MPI) and computed tomography angiography (CTA) fractional flow reserve (FFR) for the identification of functionally relevant coronary artery disease (CAD). Read more

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 dsct.com | Jan 2, 2018
dsct.com

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

Unenhanced third-generation dual-source chest CT using a tin filter for spectral shaping at 100 kVp

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

To prospectively investigate image quality and radiation dose of 100 kVp spectral shaping chest CT using a dedicated tin filter on a 3rd generation dual-source CT (DSCT) in comparison to standard100 kVp chest CT. Read more

The evolution of radiation dose over time: Measurement of a patient cohort undergoing wholebody examinations on three computer tomography generations

posted by dsct.com | Dec 14, 2017
dsct.com

To evaluate and compare the radiation dose and image quality of whole-body-CT (WBCT) performed on the 3rd-generation dual-source-CT (DSCT) with 2nd-generation DSCT and 64-slices-Single-Source-CT (SSCT) in a large patient cohort. Read more

Combined Electrocardiography- and Respiratory-Triggered CT of the Lung to Reduce Respiratory Misregistration Artifacts between Imaging Slabs in Free-Breathing Children: Initial Experience

posted by Hyun Woo Goo, M.D. | Dec 7, 2017
Hyun Woo Goo, M.D.

Cardiac and respiratory motion artifacts degrade the image quality of lung CT in free-breathing children. The aim of this study was to evaluate the effect of combined electrocardiography (ECG) and respiratory triggering on respiratory misregistration artifacts on lung CT in free-breathing children. Read more

Evaluation of commissural malalignment of aortic-pulmonary sinus using cardiac CT for arterial switch operation: comparison with transthoracic echocardiography.

posted by Hyun Woo Goo, M.D. | Nov 30, 2017
Hyun Woo Goo, M.D.

There are limited data regarding the influence of commissural malalignment of the aortic-pulmonary sinus on the arterial switch operation. Read more

Patient Size-Specific Analysis of Dose Indexes From CT Lung Cancer Screening

posted by dsct.com | Nov 23, 2017
dsct.com

The U.S. Centers for Medicare & Medicaid Services (CMS) recently approved the use of low-dose CT for lung cancer screening and described volumetric CT dose index (CTDIvol) requirements. These were based on the National Lung Screening Trial, which used only fixed-tube-current techniques. The aim of this study was to evaluate … Read more

Intra-individual diagnostic image and organ-specific-radiation dose comparison between spiral cCT with iterative image reconstruction and z-axis automated tube current modulation and sequential cCT

posted by Thomas Henzler, MD | Nov 16, 2017
Thomas Henzler, MD

To prospectively evaluate image quality and organ-specific-radiation dose of spiral cranial CT (cCT) combined with automated tube current modulation (ATCM) and iterative image reconstruction (IR) in comparison to sequential tilted cCT reconstructed with filtered back projection (FBP) without ATCM. Read more

Detecting Intracranial Hemorrhage Using Automatic Tube Current Modulation With Advanced Modeled Iterative Reconstruction in Unenhanced Head Single- and Dual-Energy Dual-Source CT

posted by Julian L. Wichmann, M.D. | Nov 9, 2017
Julian L. Wichmann, M.D.

The purpose of our study was to determine diagnostic accuracy, image quality, and radiation dose of low-dose single- and dual-energy unenhanced third-generation dual-source head CT for detection of intracranial hemorrhage (ICH). Read more




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