ArticleScientific reports2021
Metal artefact reduction of different alloys with dual energy computed tomography (DECT).
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Assessment of radiation permeability of CoCrMo and Ti-6Al-4V implants by Monte Carlo simulation of mass attenuation coefficients.Physical and engineering sciences in medicine · 2026Article
- The diagnostic efficacy of venous-phase spectral CT combined with Node-RADS for differentiating enlarged lymph nodes in common solid tumors: a preliminary exploratory study.Frontiers in oncology · 2026Article
- Metal artifact reduction leading to appearance of fractures in pedicle screws: illustrative case.Journal of neurosurgery. Case lessons · 2025Article
- Assessment of metal artifacts from titanium wrist prostheses: photon-counting versus energy-integrating detector CT.European radiology experimental · 2025Article
- Dual-Energy Computed Tomography, a New Metal Artifact Reduction Technique for Total Hip Arthroplasty: Is There a Light in the Darkness?Journal of clinical medicine · 2025Review
- The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study.Diagnostics (Basel, Switzerland) · 2025Article
- Updates on the Applications of Spectral Computed Tomography for Musculoskeletal Imaging.Diagnostics (Basel, Switzerland) · 2024Review
- Assessment of material identification and quantification in the presence of metals using spectral photon counting CT.PloS one · 2024Article
- Dual-Energy Computed Tomography Applications to Reduce Metal Artifacts in Hip Prostheses: A Phantom Study.Diagnostics (Basel, Switzerland) · 2022Article
- Improving radiation physics, tumor visualisation, and treatment quantification in radiotherapy with spectral or dual-energy CT.Journal of applied clinical medical physics · 2022Review
- Dual-Energy Computed Tomography Imaging in Early-Stage Hepatocellular Carcinoma: A Preliminary Study.Contrast media & molecular imaging · 2022Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To evaluate the influence of dual-energy CT (DECT) and Virtual monochromatic spectral (VMS) imaging on: (1) the artefact size of geometrically identical orthopaedic implants consisting of three different compositions and (2) the image quality of the surrounding bone, three similar phantoms-each featuring one femoral stem composed of either titanium, chrome-cobalt or stainless steel surrounded by five calcium pellets (200 mg hydroxyapatite/calcium carbonate) to simulate bony tissue and one reference pellet located away from the femoral stem-were built. DECT with two sequential scans (80 kVp and 140 kVp; scan-to-scan technique) was performed, and VMS images were calculated between 40 and 190 keV. The artefact sizes were measured volumetrically by semiautomatic selection of regions of interest (ROIs), considering the VMS energies and the polychromatic spectres. Moreover, density and image noise within the pellets were measured. All three phantoms exhibit artefact size reduction as energy increases from 40 to 190 keV. Titanium exhibited a stronger reduction than chrome-cobalt and stainless steel. The artefacts were dependent on the diameter of the stem. Image quality increases with higher energies on VMS with a better depiction of surrounding structures. Monoenergetic energies 70 keV and 140 keV demonstrate superior image quality to those produced by spectral energies 80 kVp and 140 kVp.
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