ArticleEuropean radiology experimental2023
Visual and quantitative assessment of hip implant-related metal artifacts at low field MRI: a phantom study comparing a 0.55-T system with 1.5-T and 3-T systems.
Article in European radiology experimental, 2023. 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 MR-Induced Heating Effects in Four Common Veterinary Implants at 1.5 and 3.0 T: A Phantom Study.Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association · 2026Article
- Net zero emission MR imaging using a permanent 0.4 T magnet.Magma (New York, N.Y.) · 2026Article
- Open-Source Simulator of Imaging Near Metal at Arbitrary Magnetic Field Strengths.Magnetic resonance in medicine · 2026Article
- Intraoral Coil Arrays for Single-Tooth Dental MRI.Magnetic resonance in medicine · 2026Article
- Acceleration of slice encoding for metal artifact correction at 0.55 T using hexagonal sampling.Magnetic resonance in medicine · 2026Article
- Low-field and portable MRI technology: advancements and innovations.European radiology experimental · 2025Review
- Imaging near titanium total hip arthroplasty at 0.55 T compared with 3 T.Magnetic resonance in medicine · 2025Article
- Improved metal suppression using new generation low-field MRI: a biophantom feasibility study.Skeletal radiology · 2025Article
- Clinical MR imaging of patients with spinal hardware at 0.55T: comparison of diagnostic assessment and metal artifact appearance with 1.5T.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Article
- Influence of ear tags on the results of body composition analysis in mice.Animal models and experimental medicine · 2024Article
- The potential of low-field MRI in abdominal imaging.European radiology · 2023Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTo investigate hip implant-related metal artifacts on a 0.55-T system compared with 1.5-T and 3-T systems.
methodsTotal hip arthroplasty made of three different alloys were evaluated in a water phantom at 0.55, 1.5, and 3 T using routine protocols. Visually assessment (VA) was performed by three readers using a Likert scale from 0 (no artifacts) to 6 (extremely severe artifacts). Quantitative assessment (QA) was performed using the coefficient of variation (CoV) and the fraction of voxels within a threshold of the mean signal intensity compared to an automatically defined region of interest (FVwT). Agreement was evaluated using intra/inter-class correlation coefficient (ICC).
resultsInterreader agreement of VA was strong-to-moderate (ICC 0.74-0.82). At all field strengths (0.55-T/1.5-T/3-T), artifacts were assigned a lower score for titanium (Ti) alloys (2.44/2.9/2.7) than for stainless steel (Fe-Cr) (4.1/3.9/5.1) and cobalt-chromium (Co-Cr) alloys (4.1/4.1/5.2) (p < 0.001 for both). Artifacts were lower for 0.55-T and 1.5-T than for 3-T systems, for all implants (p ≤ 0.049). A strong VA-to-QA correlation was found (r = 0.81; p < 0.001); CoV was lower for Ti alloys than for Fe-Cr and Co-Cr alloys at all field strengths. The FVwT showed a negative correlation with VA (-0.68 < r < -0.84; p < 0.001).
conclusionsArtifact intensity was lowest for Ti alloys at 0.55 T. For other alloys, it was similar at 0.55 T and 1.5 T, higher at 3 T. Despite an inferior gradient system and a larger bore width, the 0.55-T system showed the same artifact intensity of the 1.5-T system.
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