{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T04:50:17Z","timestamp":1785473417689,"version":"3.56.0"},"reference-count":49,"publisher":"Korean Neuropsychiatric Association","issue":"2","license":[{"start":{"date-parts":[[2023,2,23]],"date-time":"2023-02-23T00:00:00Z","timestamp":1677110400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Korean Neuropsychiatry Research Foundation"}],"content-domain":{"domain":["psychiatryinvestigation.org"],"crossmark-restriction":true},"short-container-title":["Psychiatry Investig"],"published-print":{"date-parts":[[2023,2,25]]},"abstract":"<jats:p>Objective Incontrovertible disease markers are absent in delirium. This study investigated the usefulness of quantitative electroencephalography (qEEG) in diagnosing delirium.Methods This retrospective case-control study reviewed medical records and qEEG data of 69 age\/sex-matched patients (delirium group, n=30; control group, n=39). The first minute of artifact-free EEG data with eyes closed was selected. Nineteen electrodes\u2019 sensitivity, specificity, and correlation with delirium rating scale-revised-98 were analyzed.Results On comparing the means of absolute power by frontal, central, and posterior regions, the delta and theta powers showed significant differences (p&lt;0.001) in all regions, and the magnitude of the absolute power was higher in the delirium group than in the control group; only the posterior region showed a significant (p&lt;0.001) difference in beta power. The spectral power of theta at the frontal region (area under the curve [AUC]=0.84) and theta at the central and posterior regions (AUC=0.83) showed 90% sensitivity and 79% specificity, respectively, in differentiating delirious patients and controls. The beta power of the central region showed a significant negative correlation with delirium severity (R=-0.457, p=0.011).Conclusion Power spectrum analysis of qEEG showed high accuracy in screening delirium among patients. The study suggests qEEG as a potential aid in diagnosing delirium.<\/jats:p>","DOI":"10.30773\/pi.2022.0294","type":"journal-article","created":{"date-parts":[[2023,2,23]],"date-time":"2023-02-23T23:39:32Z","timestamp":1677195572000},"page":"144-151","update-policy":"https:\/\/doi.org\/10.30773\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The Usefulness of Quantitative Electroencephalography in Diagnosis and Severity Evaluation of Delirium: A Retrospective Study"],"prefix":"10.30773","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0344-9674","authenticated-orcid":true,"given":"Seung Bhin","family":"Kim","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9492-9501","authenticated-orcid":true,"given":"Su Hyun","family":"Bong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3581-5029","authenticated-orcid":true,"given":"Jong Hun","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2677-9297","authenticated-orcid":true,"given":"Tae Young","family":"Choi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1845-7722","authenticated-orcid":true,"given":"Seo Young","family":"Yoon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6793-3006","authenticated-orcid":true,"given":"Jun Won","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"12228","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1108\/rr-10-2013-0256"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1002\/gps.4823"},{"key":"ref3","first-page":"977","volume-title":"Prevalence and detection of delirium in elderly emergency department patients","author":"Elie","year":"2000"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0579.2003.00201.x"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532-5415.1992.tb01859.x"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1046\/j.1532-5415.2002.50210.x"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1097\/aln.0000000000000329"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1038\/nrneurol.2009.24"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1001\/archinternmed.2007.4"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532-5415.2011.03671.x"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-009-1466-8"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1186\/cc11407"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1056\/nejmra1208705"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.2147\/ndt.s49520"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201101-0065oc"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2015.3595"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0110935"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1097\/00000542-200601000-00005"},{"key":"ref19","first-page":"1287","volume-title":"The role of neuroimaging in elucidating delirium pathophysiology","author":"Alsop","year":"2006"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1017\/s1041610291000686"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpsychores.2008.05.021"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.3389\/fphar.2014.00075"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1159\/000235796"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1378\/chest.13-3050"},{"key":"ref25","first-page":"103","volume-title":"Standard EEG and the difficult-to-assess mental status","author":"Sidhu","year":"2009"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1212\/wnl.0000000000008164"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1126\/science.7434026"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1126\/science.3336779"},{"key":"ref29","first-page":"20","volume-title":"Neurometric BrainMapping in the diagnosis and rehabilitation of cognitive dysfunction","author":"Senf","year":"1988"},{"key":"ref30","first-page":"28","volume-title":"The clinical global impressions scale: applying a research tool in clinical practice","author":"Busner","year":"2007"},{"key":"ref31","first-page":"229","volume-title":"Validation of the delirium rating scale-revised-98: comparison with the delirium rating scale and the cognitive test for delirium","author":"Trzepacz","year":"2001"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.4306\/pi.2011.8.1.30"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1038\/tp.2015.124"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1016\/s0001-2998(78)80014-2"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2014.02.010"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1111\/jgs.14748"},{"key":"ref37","doi-asserted-by":"publisher","DOI":"10.1177\/1550059418767584"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2044.2007.05255.x"},{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroscience.2004.10.007"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1523\/jneurosci.11-10-03200.1991"},{"key":"ref41","doi-asserted-by":"publisher","DOI":"10.1007\/s00429-017-1374-6"},{"key":"ref42","doi-asserted-by":"publisher","DOI":"10.3389\/neuro.09.003.2008"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.2005.068486"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.3389\/fnagi.2014.00314"},{"key":"ref45","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0607443103"},{"key":"ref46","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-017-17414-x"},{"key":"ref47","doi-asserted-by":"publisher","DOI":"10.3389\/fnhum.2011.00069"},{"key":"ref48","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2202-9-86"},{"key":"ref49","first-page":"41","volume-title":"Resting-state EEG study of comatose patients: a connectivity and frequency analysis to find differences between vegetative and minimally conscious states","author":"Lehembre","year":"2012"}],"container-title":["Psychiatry Investigation"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/psychiatryinvestigation.org\/upload\/pdf\/pi-2022-0294.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/psychiatryinvestigation.org\/journal\/view.php?doi=10.30773\/pi.2022.0294","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/psychiatryinvestigation.org\/upload\/pdf\/pi-2022-0294.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T01:44:38Z","timestamp":1678153478000},"score":1,"resource":{"primary":{"URL":"http:\/\/psychiatryinvestigation.org\/journal\/view.php?doi=10.30773\/pi.2022.0294"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,2,25]]},"references-count":49,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2023,2]]}},"URL":"https:\/\/doi.org\/10.30773\/pi.2022.0294","relation":{},"ISSN":["1738-3684","1976-3026"],"issn-type":[{"value":"1738-3684","type":"print"},{"value":"1976-3026","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,2,25]]},"assertion":[{"value":"2022-10-11","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-12-09","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-02-23","order":2,"name":"published","label":"Published online","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-02-25","order":3,"name":"published","label":"Print publication","group":{"name":"publication_history","label":"Publication History"}}]}}