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Computer-aided detection (CAD) of solid pulmonary nodules in chest x-ray equivalent ultralow dose chest CT – first in-vivo results at doselevels of 0.13 mSv

posted by Hatem Alkadhi, M.D., M.P.H., E.B.C.R. | Apr 10, 2017
Hatem Alkadhi, M.D., M.P.H., E.B.C.R.

Objectives: To determine the value of computer-aided detection (CAD) for solid pulmonary nodules in ultralow radiation dose single-energy computed tomography (CT) of the chest using third-generation dual-source CT at 100kV and fixed tube current at 70 mAs with tin filtration. Read more

Noise Texture Deviation: A Measure for Quantifying Artifacts in CT Images With Iterative Reconstructions.

posted by Hatem Alkadhi, M.D., M.P.H., E.B.C.R. | Jan 22, 2017
Hatem Alkadhi, M.D., M.P.H., E.B.C.R.

Objectives: The aims of this study were to introduce the measure noise texture deviation as quantitative parameter for evaluating iterative reconstruction (IR)-specific artifacts in computed tomography (CT) images and to test whether IR-specific artifacts, quantified through this measure, are reduced in advanced modeled IR (ADMIRE) as compared with sinogram-affirmed IR … Read more

Third-generation dual-source 70-kVp chest CT angiography with advanced iterative reconstruction in young children: image quality and radiation dose reduction platform.

posted by Michael M. Lell, M.D. | Oct 25, 2016
Michael M. Lell, M.D.

Objective: To evaluate image quality and radiation dose of high-pitch second- and third-generation dual-source chest CT angiography and to assess the effects of different levels of advanced modeled iterative reconstruction (ADMIRE) in newborns and children. Read more

Evaluation of pulmonary nodules and infection on chest CT with radiation dose equivalent to chest radiography: Prospective intra-individual comparison study to standard dose CT

posted by Hatem Alkadhi, M.D., M.P.H., E.B.C.R. | Sep 27, 2016
Hatem Alkadhi, M.D., M.P.H., E.B.C.R.

Purpose: To compare prospectively, in patients undergoing chest computed tomography (CT) for pulmonary-nodules or infection, imagequality and accuracy of standard dose (SD) and reduced dose (RD) CT with tin-filtration. Read more

70-kVp High-pitch Computed Tomography Pulmonary Angiography with 40 mL Contrast Agent: Initial Experience.

posted by U. Joseph Schoepf, M.D. | Aug 5, 2016
U. Joseph Schoepf, M.D.

Rationale and Objectives: To assess image quality, radiation dose, and diagnostic accuracy of 70-kVp high-pitch computed tomography pulmonary angiography (CTPA) using 40 mL contrast agent and sinogram affirmed iterative reconstruction (SAFIRE) compared to 100-kVp CTPA using 60 mL contrast agent and filtered back projection. Read more

Non-Electrocardiogram-Triggered 70-kVp High-Pitch Computed Tomography Angiography of the Whole Aorta With Iterative Reconstruction: Initial Results.

posted by U. Joseph Schoepf, M.D. | Jul 26, 2016
U. Joseph Schoepf, M.D.

Objectives: To evaluate the feasibility of non-electrocardiogram (ECG)-triggered 70-kVp high-pitch aortic computed tomography angiography (CTA) with iterative reconstruction (IR) and reduced contrast agent using second-generation dual-source CT (DSCT). Read more

Individualized CT Angiography Protocols for the Evaluation of the Aorta: A Feasibility Study

posted by Marco Das, M.D. | Jun 24, 2016
Marco Das, M.D.

Purpose: Ionizing radiation and iodinated contrast media are potential drawbacks to repetitive follow-up CT angiography in current practice. The aim of the present study was to optimize radiation dose and contrast agent volume by using individualized CT angiography protocols. Read more

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