Articles with "virtual monoenergetic" as a keyword



Virtual monoenergetic images from spectral detector computed tomography facilitate washout assessment in arterially hyper-enhancing liver lesions

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Published in 2020 at "European Radiology"

DOI: 10.1007/s00330-020-07379-3

Abstract: Objectives To investigate whether the increased soft tissue contrast of virtual monoenergetic images (VMIs) obtained from a spectral detector computed tomography (SDCT) system improves washout assessment of arterially hyper-enhancing liver lesions. Methods Fifty-nine arterially hyper-enhancing… read more here.

Keywords: enhancing liver; arterially hyper; virtual monoenergetic; hyper enhancing ... See more keywords

Noise-optimised virtual monoenergetic imaging of dual-energy CT: effect on metal artefact reduction in patients with lumbar internal fixation

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Published in 2019 at "European Spine Journal"

DOI: 10.1007/s00586-019-05984-5

Abstract: PurposeThe purpose of this study was to evaluate the effects of noise-optimised virtual monoenergetic imaging (VMI+) reconstructions on reducing metal artefacts compared to traditional virtual monoenergetic imaging (VMI) and linearly blended (M_0.6) reconstructions in patients… read more here.

Keywords: kev; kev vmi; vmi; metal ... See more keywords
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Virtual monoenergetic dual-energy CT for evaluation of hepatic and splenic lacerations

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Published in 2019 at "Emergency Radiology"

DOI: 10.1007/s10140-019-01687-y

Abstract: PurposeTo evaluate the utility of virtual monoenergetic imaging in assessing hepatic and splenic lacerations and to determine the optimal energy level to maximize injury contrast-to-noise ratio.MethodsWe retrospectively examined 49 contrast-enhanced abdominal CT studies performed on… read more here.

Keywords: conventional images; contrast; energy; virtual monoenergetic ... See more keywords
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Metal artifact reduction by dual-layer computed tomography using virtual monoenergetic images.

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Published in 2017 at "European journal of radiology"

DOI: 10.1016/j.ejrad.2017.05.013

Abstract: OBJECTIVE The aim of the study was to investigate the performance and diagnostic value of metal artifact reduction in virtual monoenergetic images generated from dual-layer computed tomography (DLCT). METHODS 35 patients that received a DLCT… read more here.

Keywords: dual layer; metal artifact; virtual monoenergetic; artifact reduction ... See more keywords
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Noise characteristics of virtual monoenergetic images from a novel detector-based spectral CT scanner.

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Published in 2018 at "European journal of radiology"

DOI: 10.1016/j.ejrad.2017.11.005

Abstract: AIM To evaluate the noise characteristics of virtual monoenergetic images (VMI) obtained from a recently introduced dual-layer detector-based spectral CT (SDCT), both in a phantom and patients. MATERIALS AND METHODS A cylindrical Catphan® 600 phantom… read more here.

Keywords: noise characteristics; virtual monoenergetic; noise; characteristics virtual ... See more keywords
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Reduction of microwave ablation needle related metallic artifacts using virtual monoenergetic images from dual-layer detector spectral CT in a rabbit model with VX2 tumor

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Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-88853-w

Abstract: The purpose of the study was to investigate the application of virtual monoenergetic images (VMIs) in reducing metal artifacts in rabbit VX2 liver cancer models treated with microwave ablation (MWA) therapy. A total of 31… read more here.

Keywords: kev; 200 kev; virtual monoenergetic; microwave ablation ... See more keywords
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Evaluation of Virtual Monoenergetic Images on Pulmonary Vasculature Using the Dual-Layer Detector-Based Spectral Computed Tomography

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Published in 2018 at "Journal of Computer Assisted Tomography"

DOI: 10.1097/rct.0000000000000748

Abstract: Objective To evaluate the ability of retrospectively generated virtual monoenergetic images (VMIs) from the detector-based spectral computed tomography (SDCT) to augment pulmonary artery enhancement in CT and if iodine map can predict the optimal monoenergetic… read more here.

Keywords: based spectral; energy; attenuation; virtual monoenergetic ... See more keywords
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Virtual monoenergetic images by spectral detector computed tomography may improve image quality and diagnostic ability for ischemic lesions in acute ischemic stroke

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Published in 2022 at "Acta Radiologica"

DOI: 10.1177/02841851221130612

Abstract: Background Acute ischemic lesions are challenging to detect by conventional computed tomography (CT). Virtual monoenergetic images may improve detection rates by increased tissue contrast. Purpose To compare the ability to detect ischemic lesions of virtual… read more here.

Keywords: image quality; may improve; conventional images; virtual monoenergetic ... See more keywords
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Image-Quality Assessment of Polyenergetic and Virtual Monoenergetic Reconstructions of Unenhanced CT Scans of the Head: Initial Experiences with the First Photon-Counting CT Approved for Clinical Use

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Published in 2022 at "Diagnostics"

DOI: 10.3390/diagnostics12020265

Abstract: In 2021, the first clinical photon-counting CT (PCCT) was introduced. The purpose of this study is to evaluate the image quality of polyenergetic and virtual monoenergetic reconstructions in unenhanced PCCTs of the head. A total… read more here.

Keywords: image; photon counting; monoenergetic reconstructions; virtual monoenergetic ... See more keywords
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Dual-Energy CT for the Detection of Portal Vein Thrombosis: Improved Diagnostic Performance Using Virtual Monoenergetic Reconstructions

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Published in 2022 at "Diagnostics"

DOI: 10.3390/diagnostics12071682

Abstract: Purpose: To investigate the diagnostic performance of noise-optimized virtual monoenergetic images (VMI+) in dual-energy CT (DECT) of portal vein thrombosis (PVT) compared to standard reconstructions. Method: This retrospective, single-center study included 107 patients (68 men;… read more here.

Keywords: kev vmi; virtual monoenergetic; portal vein; diagnostic performance ... See more keywords
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Impact of Photon Counting Detector CT Derived Virtual Monoenergetic Images on the Diagnosis of Pulmonary Embolism

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Published in 2022 at "Diagnostics"

DOI: 10.3390/diagnostics12112715

Abstract: Purpose: To assess the impact of virtual-monoenergetic-image (VMI) energies on the diagnosis of pulmonary embolism (PE) in photon-counting-detector computed-tomography (PCD-CT). Methods: Eighty patients (median age 60.4 years) with suspected PE were retrospectively included. Scans were… read more here.

Keywords: diagnosis pulmonary; pulmonary embolism; vmi; virtual monoenergetic ... See more keywords