{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T18:33:09Z","timestamp":1789497189872,"version":"build-2803163510"},"reference-count":67,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2023,8,23]],"date-time":"2023-08-23T00:00:00Z","timestamp":1692748800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002261","name":"Russian Foundation for Basic Research","doi-asserted-by":"publisher","award":["18-29-26007 (mk)"],"award-info":[{"award-number":["18-29-26007 (mk)"]}],"id":[{"id":"10.13039\/501100002261","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>The importance of assessing the collateral status (CS) in patients with ischaemic stroke (IS) has repeatedly been emphasised in clinical guidelines. Various publications offer qualitative or semiquantitative scales with gradations corresponding to the different extents of the collaterals, visualised mostly on the basis of CTA images. However, information on their inter-rater reliability is limited. Therefore, the aim of this study is to investigate the inter-rater reliability of the scales for collateral assessment. CTA images of 158 patients in the acute period of IS were used in the study. The assessment of CS was performed by two experts using three methodologies: the modified Tan scale, the Miteff scale, and the Rosenthal scale. Cohen\u2019s kappa, weighted kappa and Krippendorff\u2019s alpha were used as reliability measures. For the modified Tan scale and the Miteff and Rosenthal scales, the weighted kappa values were 0.72, 0.49 and 0.59, respectively. Although the best measure of consistency was found for the modified Tan scale, no statistically significant differences were revealed among the scales. The impact of the CS on the degree of neurological deficit at discharge was shown for the modified Tan and Rosenthal scales. In conclusion, the analysis showed a moderate inter-rater reliability of the three scales, but was not able to distinguish the best one among them.<\/jats:p>","DOI":"10.3390\/jcm12175470","type":"journal-article","created":{"date-parts":[[2023,8,23]],"date-time":"2023-08-23T08:01:21Z","timestamp":1692777681000},"page":"5470","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Inter-Rater Reliability of Collateral Status Assessment Based on CT Angiography: A Retrospective Study of Middle Cerebral Artery Ischaemic Stroke"],"prefix":"10.3390","volume":"12","author":[{"given":"Daria D.","family":"Dolotova","sequence":"first","affiliation":[{"name":"Department of Bioinformatics, Department of Pediatric Surgery, Pirogov Russian National Research Medical University, Russian Ministry of Health, 117997 Moscow, Russia"},{"name":"Research Department, Gammamed-Soft, Ltd., 127473 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4678-060X","authenticated-orcid":false,"given":"Evgenia R.","family":"Blagosklonova","sequence":"additional","affiliation":[{"name":"Research Department, Gammamed-Soft, Ltd., 127473 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rustam Sh.","family":"Muslimov","sequence":"additional","affiliation":[{"name":"Department of Radiology, Scientific Department of Emergency Neurology and Rehabilitation Treatment, N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Health Department, 129090 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ganipa R.","family":"Ramazanov","sequence":"additional","affiliation":[{"name":"Department of Radiology, Scientific Department of Emergency Neurology and Rehabilitation Treatment, N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Health Department, 129090 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-7620-0535","authenticated-orcid":false,"given":"Tatyana A.","family":"Zagryazkina","sequence":"additional","affiliation":[{"name":"Research Department, Gammamed-Soft, Ltd., 127473 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valentin N.","family":"Stepanov","sequence":"additional","affiliation":[{"name":"Department of Radiology, Scientific Department of Emergency Neurology and Rehabilitation Treatment, N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Health Department, 129090 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrey V.","family":"Gavrilov","sequence":"additional","affiliation":[{"name":"Research Department, Gammamed-Soft, Ltd., 127473 Moscow, Russia"},{"name":"Scobeltsyn Nuclear Physics Research Institute, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,8,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1177\/17474930211065917","article-title":"World Stroke Organization (WSO): Global stroke fact sheet 2022","volume":"17","author":"Feigin","year":"2022","journal-title":"Int. J. 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