ArticleDiagnostics (Basel, Switzerland)2023
Single-Energy Metal Artifact Reduction (SEMAR) in Ultra-High-Resolution CT Angiography of Patients with Intracranial Implants.
Article in Diagnostics (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 15 citations in OpenAlex.
- Response to "Classification of intracranial aneurysm remnants after clipping in the era of three-dimensional digital subtraction angiography".Acta neurochirurgica · 2025Article
- Photon-counting CT-angiography in comparison to digital subtraction angiography for assessing intracranial aneurysms after coiling or clipping.Neuroradiology · 2025Article
- Effectiveness of single-energy metal artifact reduction algorithm in CT: application to contrast-enhanced CT with EVAR and coil embolization.The international journal of cardiovascular imaging · 2025Article
- Non-contact tracking of shoulder bones using ultrasound and stereophotogrammetry.Frontiers in bioengineering and biotechnology · 2025Article
- Cervical CT Angiography: The Advantage of Ultra-High-Resolution CT Versus Conventional HRCT.Cancers · 2024Article
- A robust index for metal artifact quantification in computed tomography.Journal of applied clinical medical physics · 2024Article
- Application of metal artifact reduction algorithm in reducing metal artifacts in post-surgery pediatric low radiation dose spine computed tomography (CT) images.Quantitative imaging in medicine and surgery · 2024Article
- Enhancing image quality in computed tomography angiography follow-ups after endovascular aneurysm repair: a comparative study of reconstruction techniques.BMC medical imaging · 2024Article
- Feasibility of In Vivo Metal Artifact Reduction in Contrast-Enhanced Dedicated Spiral Breast Computed Tomography.Diagnostics (Basel, Switzerland) · 2023Article
- State-of-the-Art Research: Current Developments in CT Imaging.Diagnostics (Basel, Switzerland) · 2023Article
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Authors and funding
9 authors at 2 institutions in 1 country.
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Abstract
purposeTo evaluate the effects of single-energy metal artifact reduction (SEMAR) on image quality of ultra-high-resolution CT-angiography (UHR-CTA) with intracranial implants after aneurysm treatment.
methodsImage quality of standard and SEMAR-reconstructed UHR-CT-angiography images of 54 patients who underwent coiling or clipping was retrospectively evaluated. Image noise (i.e., index for metal-artifact strength) was analyzed in close proximity to and more distally from the metal implant. Frequencies and intensities of metal artifacts were additionally measured and intensity-differences between both reconstructions were compared in different frequencies and distances. Qualitative analysis was performed by two radiologists using a four-point Likert-scale. All measured results from both quantitative and qualitative analysis were then compared between coils and clips.
resultsMetal artifact index (MAI) and the intensity of coil-artifacts were significantly lower in SEMAR than in standard CTA in close vicinity to and more distally from the coil-package (
conclusionSEMAR significantly reduces metal artifacts in UHR-CT-angiography images with intracranial implants and improves image quality and diagnostic confidence. SEMAR effects were strongest in patients with coils, whereas the effects were minor in patients with titanium-clips due to the absent of or minimal artifacts.
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