{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T19:38:50Z","timestamp":1740166730170,"version":"3.37.3"},"reference-count":20,"publisher":"Georg Thieme Verlag KG","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Neurol Surg B Skull Base"],"published-print":{"date-parts":[[2023,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Objectives\u2003We investigated the optic nerve (ON) and chiasm (OC) in magnetic resonance (MR) in diabetic patients by comparing them with hemoglobin A1c (HbA1c) levels.<\/jats:p><jats:p>\n          Methods\u2003In this retrospective study, cranial MRIs of 42 adults (19 males and 23 females) with diabetes mellitus (DM) (group1) and 40 healthy controls (19 males and 21 females) (group 2) were included. In both groups, bilateral ON widths and OC area, width, and height were measured. In the DM group, HbA1c values were also obtained at the time of MRI or within the same month.<\/jats:p><jats:p>\n          Results\u2003In the DM group, the mean of the HbA1c values was 8.31\u2009\u00b1\u20092.51%. There were no significant differences between ON diameter; and OC area, width and height of the DM and control groups (p\u2009&gt;\u20090.05). In each of the DM and control groups, ON diameter was not different between the right and left sides (p\u2009&gt;\u20090.05). In DM groups, correlation tests showed that there were positive correlations between right and left ON diameters, OC area and OC width, and OC height (p\u2009&lt;\u20090.05). In males, ON diameters were higher than those in females bilaterally (p\u2009&lt;\u20090.05). In patients with higher HbA1c values, OC width was smaller (p\u2009&lt;\u20090.05).<\/jats:p><jats:p>\n          Conclusion\u2003A significant correlation of OC width and HbA1c levels suggests that uncontrolled DM causes ON atrophy. Our study represents a thorough assessment of OC measures using standard brain MRI to evaluate optic degeneration in DM patients and shows that the OC width measurement is suitable and reliable. This simple method can be obtained from clinically available scans.<\/jats:p>","DOI":"10.1055\/s-0042-1758146","type":"journal-article","created":{"date-parts":[[2022,11,9]],"date-time":"2022-11-09T23:48:51Z","timestamp":1668037731000},"page":"194-199","source":"Crossref","is-referenced-by-count":0,"title":["Is There a Relationship between Optic Nerve and Chiasm Measurements with HbA1c Levels in Diabetic Patients?"],"prefix":"10.1055","volume":"84","author":[{"given":"Pelin Zeynep","family":"Bekin Sar\u0131kaya","sequence":"additional","affiliation":[{"name":"Radiology Department, K\u0131r\u0131kkale University, Faculty of Medicine, K\u0131r\u0131kkale, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3602-9289","authenticated-orcid":false,"given":"Nuray","family":"Bayar Muluk","sequence":"additional","affiliation":[{"name":"ENT Department, K\u0131r\u0131kkale University, Faculty of Medicine, K\u0131r\u0131kkale, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adnan","family":"\u00d6zdem\u0131r","sequence":"additional","affiliation":[{"name":"Radiology Department, K\u0131r\u0131kkale University, Faculty of Medicine, K\u0131r\u0131kkale, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A\u015fk\u0131n","family":"G\u00fcng\u00fcne\u015f","sequence":"additional","affiliation":[{"name":"Endocrinology and Metabolism Department, K\u0131r\u0131kkale University, Faculty of Medicine, K\u0131r\u0131kkale, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2022,11,9]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"S62","DOI":"10.2337\/dc11-S062","article-title":"Diagnosis and classification of diabetes mellitus","volume":"34","author":"American Diabetes Association","year":"2011","journal-title":"Diabetes Care"},{"issue":"01","key":"ref2","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1016\/j.diabres.2009.10.007","article-title":"Global estimates of the prevalence of diabetes for 2010 and 2030","volume":"87","author":"J E Shaw","year":"2010","journal-title":"Diabetes Res Clin Pract"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"95","DOI":"10.4137\/BMI.S38440","article-title":"Significance of HbA1c test in diagnosis and prognosis of diabetic patients","volume":"11","author":"S I Sherwani","year":"2016","journal-title":"Biomark Insights"},{"issue":"02","key":"ref4","first-page":"124","article-title":"N\u00f6ropatilerde Ay\u0131r\u0131c\u0131 Tan\u0131lar: Diyabetik Papillopati, \u0130skemik Optik N\u00f6ropati ve Optik Atrofi (Differential Diagnoses in Diabetic Optic Neuropathies: Diabetic Papillopathy, Ischemic Optic Neuropathy and Optic Atrophy)","volume":"2","author":"E T Yassa","year":"2018","journal-title":"G\u00fcncel Retina Dergisi (Current Retina Journal)"},{"volume-title":"Optic atrophy. 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