{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T17:49:50Z","timestamp":1777571390800,"version":"3.51.4"},"reference-count":9,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2015,6,9]],"date-time":"2015-06-09T00:00:00Z","timestamp":1433808000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Clin EEG Neurosci"],"published-print":{"date-parts":[[2016,4]]},"abstract":"<jats:p>Introduction. Using electroencephalography (EEG) and histology in patients with diffuse encephalopathy, Gloor et al reported that paroxysmal synchronous discharges (PSDs) on EEG required combined cortical gray (CG) and \u201csubcortical\u201d gray (SCG) matter pathology, while polymorphic delta activity (PDA) occurred in patients with white matter pathology. In patients with encephalopathy, we compared EEG findings and magnetic resonance imaging (MRI) to determine if MRI reflected similar pathological EEG correlations. Methods. Retrospective case control study of 52 cases with EEG evidence of encephalopathy and 50 controls without evidence of encephalopathy. Review of clinical, EEG and MRI data acquired within 4 days of each other. Results. The most common EEG finding in encephalopathy was background slowing, in 96.1%. We found PSDs in 0% of cases with the combination of CG and SCG abnormalities. Although 13.5% (n = 7) had PSDs on EEG; 3 of these had CG and 4 had SCG abnormalities. A total of 73.1% (38\/52) had white matter abnormalities\u2014of these 28.9% (11\/38) had PDA. Conclusion. PSDs were found with either CG or \u201cSCG\u201d MRI abnormalities and did not require a combination of the two. In agreement with Gloor et al, PDA occurred with white matter MRI abnormalities in the absence of gray matter abnormalities.<\/jats:p>","DOI":"10.1177\/1550059415590058","type":"journal-article","created":{"date-parts":[[2015,6,10]],"date-time":"2015-06-10T20:00:57Z","timestamp":1433966457000},"page":"150-156","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Electroencephalography and Brain MRI Patterns in Encephalopathy"],"prefix":"10.1177","volume":"47","author":[{"given":"Angela","family":"Wabulya","sequence":"first","affiliation":[{"name":"Department of Neurology, University of North Carolina Chapel Hill School of Medicine, Chapel Hill, NC, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ronald P.","family":"Lesser","sequence":"additional","affiliation":[{"name":"Johns Hopkins University School of Medicine, Baltimore, MD, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafael","family":"Llinas","sequence":"additional","affiliation":[{"name":"Johns Hopkins University School of Medicine, Baltimore, MD, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter W.","family":"Kaplan","sequence":"additional","affiliation":[{"name":"Johns Hopkins University School of Medicine, Baltimore, MD, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2015,6,9]]},"reference":[{"key":"bibr1-1550059415590058","doi-asserted-by":"publisher","DOI":"10.7861\/clinmedicine.6-6-540"},{"key":"bibr2-1550059415590058","first-page":"191","volume-title":"Imitators of Epilepsy","volume":"2005","author":"Benatar M","edition":"2"},{"key":"bibr3-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1097\/00004691-198401040-00001"},{"key":"bibr4-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/91.4.779"},{"key":"bibr5-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.27.4.326"},{"key":"bibr6-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/73.3.392"},{"key":"bibr7-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(64)90032-X"},{"key":"bibr8-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1097\/WNP.0b013e31821c33a0"},{"key":"bibr9-1550059415590058","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0404.1965.tb01982.x"}],"container-title":["Clinical EEG and Neuroscience"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1550059415590058","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/1550059415590058","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1550059415590058","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T19:13:10Z","timestamp":1777403590000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/1550059415590058"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,6,9]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2016,4]]}},"alternative-id":["10.1177\/1550059415590058"],"URL":"https:\/\/doi.org\/10.1177\/1550059415590058","relation":{},"ISSN":["1550-0594","2169-5202"],"issn-type":[{"value":"1550-0594","type":"print"},{"value":"2169-5202","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,6,9]]}}}