ArticleJournal of neurointerventional surgery2022
The impact of software-based metal artifact reduction on the liquid embolic agent Onyx in cone-beam CT: a systematic in vitro and in vivo study.
Article in Journal of neurointerventional surgery, 2022. 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, 9 citations in OpenAlex.
- Sine spin flat-detector CT for enhanced brain parenchyma visualization: an intraindividual comparison on a latest-generation angiography system.Neuroradiology · 2026Article
- Article
- Correction of metal artefacts around orthodontic mini-implants - a micro-CT study in the rat tail model.Scientific reports · 2025Article
- Onyx Liquid Embolic Agent: Basic Knowledge for Its Use in Interventional Neuroradiology.Journal of neuroendovascular therapy · 2025Review
- Sine Spin flat detector CT can improve cerebral soft tissue imaging: a retrospective in vivo study.European radiology experimental · 2024Article
- Visibility of liquid embolic agents in fluoroscopy: a systematic in vitro study.Journal of neurointerventional surgery · 2023Article
- PHIL and Squid Embolization of Cerebral Arteriovenous Malformation: A Retrospective Case Series of 23 Patients.Neurointervention · 2022Article
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7 authors at 1 institution in 1 country.
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Abstract
backgroundOnyx is frequently used for endovascular embolization of intracranial arteriovenous malformations (AVMs) and dural arteriovenous fistulas (dAVFs). One drawback of using Onyx is the generation of artifacts in cone-beam CT (CBCT). These artifacts can represent an obstacle for the detection of periprocedural hemorrhage or planning of subsequent radiosurgery. This study investigates the effect of artifact reduction by the syngo DynaCT SMART Metal Artifact Reduction (MAR) software.
methodsA standardized in vitro tube model (n=10) was filled with Onyx 18 and CBCT image acquisition was conducted in a brain imaging phantom. Furthermore, post-interventional CBCT images of 20 patients with AVM (n=13) or dAVF (n=7), each treated with Onyx, were investigated. The MAR software was applied for artifact reduction. Artifacts of the original and the post-processed images were analyzed quantitatively (standard deviation in a region of interest on the layer providing the most artifacts) and qualitatively. For the patient images, the effect of the MAR software on brain parenchyma on artifact-free images was further investigated.
resultsQuantitative and qualitative analyses of both datasets demonstrated a lower degree of artifacts in the post-processed images (eg, patient images: 38.30±22.03 density units (no MAR; mean SD±SD) vs 19.83±12.31 density units (with MAR; p<0.001). The MAR software had no influence on the brain parenchyma in artifact-free images.
conclusionThe MAR software significantly reduced the artifacts evoked by Onyx in CBCT without affecting the visualization of brain parenchyma on artifact-free images. Applying this software could thus improve the quality of periprocedural CBCT images after embolization with Onyx.
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