{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T14:34:58Z","timestamp":1786977298529,"version":"build-2736575974"},"reference-count":22,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,5,20]],"date-time":"2023-05-20T00:00:00Z","timestamp":1684540800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cathet Cardio Intervent"],"published-print":{"date-parts":[[2023,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Severe coronary artery calcification is associated with stent underexpansion and subsequent stent failure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>We aimed to identify optical coherence tomography (OCT)\u2010derived predictors of absolute (minimal stent area [MSA]) and relative stent expansion in calcified lesions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective cohort study included patients who underwent percutaneous coronary intervention (PCI) with OCT assessment before and after stent implantation between May 2008 and April 2022. Pre\u2010PCI OCT was used to assess calcium burden and post\u2010PCI OCT was used to assess absolute and relative stent expansion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 361 lesions in 336 patients were analyzed. Target lesion calcification (defined as OCT\u2010detected maximum calcium angle\u2009\u2265\u200930\u00b0) was present in 242 (67.0%) lesions. Following PCI, median MSA was 5.37\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      in calcified lesions and 6.24\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      in noncalcified lesions (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Median stent expansion was 78% in calcified lesions and 83% in noncalcified lesions (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.325). In the subset of calcified lesions, average stent diameter, preprocedural minimal lumen area, and total calcium length were independent predictors of MSA in multivariable analysis (mean difference 2.69\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      \/mm\n                      <jats:sup>2<\/jats:sup>\n                      , 0.52\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      \/mm, and \u22120.28\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      \/5\u2009mm, respectively, all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Total stent length was the only independent predictor of relative stent expansion (mean difference \u22120.465% per mm,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Calcium angle, thickness, and the presence of nodular calcification were not significantly associated with MSA or stent expansion in multivariable analyses.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Calcium length appeared to be the most important OCT\u2010derived predictor of MSA, whereas stent expansion was mainly determined by total stent length.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ccd.30687","type":"journal-article","created":{"date-parts":[[2023,5,21]],"date-time":"2023-05-21T01:44:02Z","timestamp":1684633442000},"page":"25-35","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Optical coherence tomography\u2010derived predictors of stent expansion in calcified lesions"],"prefix":"10.1002","volume":"102","author":[{"given":"Annemieke C.","family":"Ziedses des Plantes","sequence":"first","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandra","family":"Scoccia","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tara","family":"Neleman","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2520-2042","authenticated-orcid":false,"given":"Frederik T. W.","family":"Groenland","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8618-0318","authenticated-orcid":false,"given":"Laurens J. C.","family":"van Zandvoort","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2544-5255","authenticated-orcid":false,"given":"Jurgen M. R.","family":"Ligthart","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karen T.","family":"Witberg","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shengnan","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric","family":"Boersma","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Thorax Center Erasmus University Medical Center Rotterdam The 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