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. 2022 May 4;15(6):594–599. doi: 10.1136/neurintsurg-2022-018958

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© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Illustration of the results of the quantitative (A–C) and qualitative (D–F) image analysis for the different sized sectors along the cylindric cavities (2.0 mm, 1.5 mm, 1.0 mm) of the in vitro models. The tantalum containing LEAs Onyx 18, Squid 18, Squid 12 and NBCA mixed with iodized oil (ratio 1:1) were better visible compared with the triiodophenol containing LEAs PHIL 25% and PHIL LV, reaching in most cases statistical significance. Detailed information on the p values are provided in tables 1 and 2. Saline was not visible in both analyses while contrast medium was similar to the tantalum-based LEAs as well as NBCA mixed with iodized oil. Upper row: quantitative analysis, lower row: qualitative analysis; bars: mean; whiskers: SD; diameter 2.0 mm (A, D); diameter 1.5 mm (B, E); diameter 1.0 mm (C, F). CNR, contrast to noise ratio; LEAs, liquid embolic agents; LV, low viscosity; NBCA, n-butyl cyanoacrylate; PHIL, precipitating hydrophobic injectable liquid.