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Two radiologists assessed DWI MRI scans of BRAO patients for RDR in a retrospective cohort study. Inter- and intrarater reliability were calculated using Kappa statistics. Detection rates of RDR were compared among MRI scans with varying field strength, sequence type and onset-to-DWI time intervals. 85 BRAO patients (63.1\u2009\u00b1\u200916.5\u00a0years) and 89 DWI scans were evaluated. Overall sensitivity of RDR in BRAO was 46.1% with visually correlating low ADC signal in 56.1% of cases. Localization of RDR matched distribution of fundoscopic retinal edema in 85% of patients. Inter- and intra-rater agreement for RDR in BRAO was \u03ba<jats:sub>inter<\/jats:sub>\u2009=\u20090.64 (95% CI 0.48\u20130.80) and \u03ba<jats:sub>intra<\/jats:sub>\u2009=\u20090.87 (95% CI 0.76\u20130.96), respectively. RDR detection rate tended to be higher for 3T, when compared to 1.5T MRI scans (53.7% vs. 34.3%%; p\u2009=\u20090.07). RDR were identified within 24\u00a0h up to 2\u00a0weeks after onset of visual impairment. RDR in BRAO can be observed by means of standard stroke DWI in a substantial proportion of cases, although sensitivity and interrater reliability were lower than previously reported for complete central retinal artery occlusion.<\/jats:p>","DOI":"10.1038\/s41598-021-00127-7","type":"journal-article","created":{"date-parts":[[2021,10,15]],"date-time":"2021-10-15T15:30:38Z","timestamp":1634311838000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Retinal diffusion restrictions in acute branch retinal arteriolar occlusion"],"prefix":"10.1038","volume":"11","author":[{"given":"Leon Alexander","family":"Danyel","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Miszczuk","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Villringer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Bohner","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E.","family":"Siebert","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,10,15]]},"reference":[{"key":"127_CR1","doi-asserted-by":"publisher","first-page":"359","DOI":"10.1016\/j.preteyeres.2011.05.001","volume":"30","author":"SS Hayreh","year":"2011","unstructured":"Hayreh, S. 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