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. 2016 Feb 22;32:871–883. doi: 10.1007/s10554-016-0856-6

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 3 — Embedment categorization. The embedment of struts was classified into 6 classes (Embedment Class [EC] 0–5) based on the degree of embedment (percentage). If struts were malapposed (indicated as negative value of percentage in the software), this was classified as EC0. When the strut was partially embedded in the vessel wall, the degree of embedment was categorized by each quartile (0 % ≤ EC1 < 25 %. 25 % ≤ EC2 < 50 %, 50 % ≤ EC3 < 75 %, 75 % ≤ EC4 < 100 %). When the tissue was covering the endoluminal surface of struts, the struts were considered as “buried”, EC5 (≥100 %)