ArticleEuropean radiology experimental2025
Assessment of metal artifacts from titanium wrist prostheses: photon-counting versus energy-integrating detector CT.
Article in European radiology experimental, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Evaluating osseointegration, bone remodeling and osteolysis after total wrist arthroplasty using photon-counting detector CT.Skeletal radiology · 2026Article
- Photon-counting CT: image quality evaluation in patients with tibial plateau fracture treated with metallic osteosynthesis material.European radiology experimental · 2026Article
- Peer review: historical evolution and reviewers' learning.Insights into imaging · 2026Review
- Dual-energy CT fusion imaging improves ice-ball visualization in bone during spinal cryoablation in porcine cadavers.European radiology experimental · 2026Article
- Optimization of dental implant imaging using photon-counting detector computed tomography in oral and maxillofacial surgery: an ex vivo study.European radiology experimental · 2026Article
- Comparative Analysis of Middle Ear Prostheses Using Photon-Counting Detector CT versus Conventional CT.AJNR. American journal of neuroradiology · 2026Article
- Metal artifact reduction and contrast agent performance as a function of source spectral shape.Physics in medicine and biology · 2025Article
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6 authors.
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Abstract
backgroundWe compared photon-counting detector computed tomography (PCD-CT) polyenergetic images, PCD-CT virtual monoenergetic images (VMI), and energy-integrating detector computed tomography (EID-CT) polyenergetic images regarding bone visualization and metal artifacts in patients with titanium wrist prostheses.
methodsAfter ethical approval, 15 patients were examined with PCD-CT and EID-CT. Polyenergetic images were reconstructed, as well as 130-keV VMI for PCD-CT. Five radiologists evaluated bone visualization, interpretability at metal-bone interface and metal artifacts using a 7-point ordinal scale. Streak artifacts and artifacts at the bone-metal interface were quantitatively assessed. Differences between image setups were analyzed using Friedman test and one-way ANOVA with post hoc tests.
resultsBone visualization was superior in PCD-CT polyenergetic images (median rating 6, range 3-7) compared with VMI (5, 3-7; p < 0.001) and EID-CT (5, 3-7; p = 0.018). Streak artifacts were more pronounced with PCD-CT polyenergetic images (4, 3-6) compared with EID-CT (5, 4-6; p = 0.003) and PCD-CT VMI (5, 3-7; p = 0.002), with quantitative results showing least streak artifacts in PCD-CT VMI, followed by EID-CT and PCD-CT polyenergetic images (50 ± 7%, 70 ± 6%, and 79 ± 5%, respectively; p < 0.001). Interpretability at bone-metal interface was better with PCD-CT polyenergetic images (5, 2-7; p = 0.045) and EID-CT (5, 3-6; p = 0.018) compared with PCD-CT VMI (4, 2-6), without quantitative differences.
conclusionStreak artifacts from titanium wrist prostheses were reduced using 130-keV PCD-CT VMI, while bone visualization was highest using PCD-CT polyenergetic images. RELEVANCE STATEMENT: In patients with wrist implants, photon-counting detector CT allows for effective metal artifact reduction using virtual monoenergetic images and improved bone visualization using polyenergetic images. As polyenergetic images and VMI have different advantages, access to both image setups may benefit diagnostic evaluation. KEY POINTS: Virtual monoenergetic images (VMI) presented a substantial reduction of metal streak artifacts. Polyenergetic images exhibited better image quality for bone imaging compared with VMI. A combination of image reconstructions should be preferred depending on the diagnostic task.
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