ArticleQuantitative imaging in medicine and surgery2025
Effects of iterative metal artifact reduction techniques on diagnostic performance in patients with dental artifacts on carotid computed tomography angiography.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Dual-energy CT with metal artifact reduction for post-EVAR CTA surveillance: a prospective study with image quality analysis.Abdominal radiology (New York) · 2026Article
- The potential of high-Z contrast media for vessel visualization near metal implants: a photon-counting detector CT phantom study with virtual monoenergetic images and iterative metal artifact reduction.Quantitative imaging in medicine and surgery · 2026Article
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9 authors.
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Abstract
Background: Metal artifacts (MAs) induced by dental prostheses in carotid computed tomography angiography (CTA) significantly impair diagnostic accuracy. This study aimed to assess the efficacy of the iterative metal artifact reduction (iMAR) technique in mitigating these artifacts. Methods: Eighty-one patients with suspected vascular disorders and dental prostheses who underwent CTA imaging were retrospectively included. The CTA images were reconstructed with and without iMAR (iMAR-CTA and non-iMAR-CTA) for evaluation. Additionally, 81 matched patients without dental prostheses who underwent CTA imaging (standard CTA) served as a reference group for objective image quality assessment. Objective image quality involving signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and artifact index (AI) were analyzed. Subjective image quality was evaluated using a five-point Likert scale. Diagnostic performance was assessed by examining luminal stenosis, calcification, and aneurysm, with digital subtraction angiography (DSA) as the reference standard. Intramodality and inter-radiologist agreements were calculated using the intraclass correlation coefficient (ICC). Results: Image quality score was significantly higher for iMAR-CTA images than non-iMAR-CTA images [radiologist 1, 5 (5-5) Conclusions: iMAR effectively reduces MAs, achieving image quality comparable to standard CTA without artifacts, facilitating a more reliable evaluation of carotid artery disorders in patients with dental prostheses.
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