Metal artifacts from sternal wires: evaluation of virtual monoenergetic images from spectral-detector CT for artifact reduction.

Adult Artifacts Female Humans Male Metals Middle Aged Radiographic Image Interpretation, Computer-Assisted / methods Plastic Surgery Procedures Signal-To-Noise Ratio Thoracoplasty Tomography, X-Ray Computed / methods
Artifacts Neoplasm staging Spectral-detector CT Sternal wires Thoracic surgery X-ray computed tomography

Journal

Clinical imaging
ISSN: 1873-4499
Titre abrégé: Clin Imaging
Pays: United States
ID NLM: 8911831

Informations de publication

Date de publication:
Apr 2020
Historique:
received: 07 05 2019
revised: 22 12 2019
accepted: 27 12 2019
pubmed: 23 1 2020
medline: 4 9 2020
entrez: 23 1 2020
Statut: ppublish

Résumé

In chest imaging, sternal wires can cause metal artifacts that hamper depiction of surrounding soft tissue and bone. This study investigated if these artifacts may be reduced by means of virtual monoenergetic images (VMI) obtained from a novel detector-based spectral CT scanner (SDCT) in comparison to conventional CT images (CI). 30 patients with clinically indicated SDCT scans of the chest exhibiting artifacts due to sternal wires were included in this IRB-approved study. CI and VMI (40-200 keV, 10 keV increment) were reconstructed. Quantitative image analysis was conducted by ROI-based measurement of attenuation (HU) and standard deviation within the most pronounced hypo- and hyperdense artifacts. Visually, artifact reduction and diagnostic assessment of surrounding soft tissue as well as sternal bone were independently rated by two radiologists on 5-point Likert-scales. In comparison to CI, high-keV VMI showed an effective reduction of hypo- and hyperattenuating parasternal artifacts, as corrected HU-values approximated their true expected values (hypodense: CI -66.2 ± 70.8; VMI High-keV VMI yielded a significant reduction of artifacts from sternal wires and improved assessment of surrounding structures.

Identifiants

DOI: 10.1016/j.clinimag.2019.12.018 PMID: 31968284
pubmed: 31968284
pii: S0899-7071(19)30286-4
doi: 10.1016/j.clinimag.2019.12.018
pii:
doi:

Substances chimiques

Metals 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

249-256

Informations de copyright

Copyright © 2020 Elsevier Inc. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of competing interest NGH: On the speaker's bureau of Philips Healthcare. The other authors state that they have nothing to disclose.

Auteurs

Kai Roman Laukamp (KR)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA; Institute for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany. Electronic address: kai.laukamp@UHhospitals.org.

Nils Große Hokamp (N)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA; Institute for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.

Omar Alabar (O)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA.

Verena Carola Obmann (VC)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA.

Simon Lennartz (S)

Institute for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.

David Zopfs (D)

Institute for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.

Robert Gilkeson (R)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA.

Nikhil Ramaiya (N)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA.

Amit Gupta (A)

Department of Radiology, University Hospitals Cleveland Medical Center Cleveland, OH, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH, USA.

Articles similaires

[Redispensing of expensive oral anticancer medicines: a practical application].

Lisanne N van Merendonk, Kübra Akgöl, Bastiaan Nuijen
1.00
Humans Antineoplastic Agents Administration, Oral Drug Costs Counterfeit Drugs

Smoking Cessation and Incident Cardiovascular Disease.

Jun Hwan Cho, Seung Yong Shin, Hoseob Kim et al.
1.00
Humans Male Smoking Cessation Cardiovascular Diseases Female

Evaluation of Low-Value Services Across Major Medicare Advantage Insurers and Traditional Medicare.

Ciara Duggan, Adam L Beckman, Ishani Ganguli et al.
1.00
Humans United States Aged Cross-Sectional Studies Medicare Part C

Effectiveness of Virtual Yoga for Chronic Low Back Pain: A Randomized Clinical Trial.

Hallie Tankha, Devyn Gaskins, Amanda Shallcross et al.
1.00
Humans Yoga Low Back Pain Female Male

Classifications MeSH

questionsmedicales.fr › Personnes › Tranches d'âge › Adulte › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Techniques d'investigation › Artéfacts › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Primates › Haplorhini › Catarrhini › Hominidae › Humains › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Personnes › Tranches d'âge › Adulte › Adulte d'âge moyen › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Sciences de l'information › Informatique › Informatique médicale › Applications de l'informatique médicale › Prise de décision assistée par ordinateur › Diagnostic assisté par ordinateur › Interprétation d'images assistée par ordinateur › Interprétation d'images radiographiques assistée par ordinateur › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Procédures de chirurgie opératoire › Procédures de chirurgie reconstructive › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Statistiques comme sujet › Sensibilité et spécificité › Rapport signal-bruit › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Procédures de chirurgie opératoire › Procédures de chirurgie thoracique › Thoracoplastie › Metal artifacts from sternal wires: evaluation...
questionsmedicales.fr › Diagnostic › Techniques et procédures diagnostiques › Imagerie diagnostique › Tomographie › Tomographie à rayons X › Tomodensitométrie › Metal artifacts from sternal wires: evaluation...