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Article: Lateral temporal hyperperfusion in postictal psychosis assessed by 99mTc-HMPAO SPECT

TitleLateral temporal hyperperfusion in postictal psychosis assessed by 99mTc-HMPAO SPECT
Authors
Issue Date2002
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ynimg
Citation
Neuroimage, 2002, v. 17 n. 3, p. 1634-1637 How to Cite?
AbstractPostictal psychosis is a rare complication of epileptic seizure characterized by reversible psychotic symptoms after flurries of seizure attack. It has been attributed to a phenomenon similar to Todd's paralysis without definitive proof. We studied regional cerebral blood flow (rCBF) of six patients with postictal psychosis by 99mTc-HMPAO SPECT scan. Baseline rCBF was compared with the rCBF during postictal psychosis. An asymmetry index (ASI) was calculated as 200 × [(ipsilateral ROI count density - contralateral ROI count density)/(ipsilateral ROI count density + contralateral ROI count density)] %. Significant differences could be found between ASIs during postictal psychosis and interictal state SPECT scan over the lateral temporal neocortex region (P = 0.017). Although hyperperfusion abnormality in SPECT can be found in Todd's paralysis, such findings are more commonly found in cerebral hyperactivity conditions. Taking into account the clinical characteristics of postictal psychosis, namely a preceding lucid interval and crescendo-decrescendo clinical course, these may be an alternative psychopathogenic mechanism for the development of postictal psychosis. © 2002 Elsevier Science (USA).
Persistent Identifierhttp://hdl.handle.net/10722/162611
ISSN
2015 Impact Factor: 5.463
2015 SCImago Journal Rankings: 4.464
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFong, GCYen_US
dc.contributor.authorHo, WYen_US
dc.contributor.authorTsoi, THen_US
dc.contributor.authorFong, KYen_US
dc.contributor.authorHo, SLen_US
dc.date.accessioned2012-09-05T05:21:39Z-
dc.date.available2012-09-05T05:21:39Z-
dc.date.issued2002en_US
dc.identifier.citationNeuroimage, 2002, v. 17 n. 3, p. 1634-1637en_US
dc.identifier.issn1053-8119en_US
dc.identifier.urihttp://hdl.handle.net/10722/162611-
dc.description.abstractPostictal psychosis is a rare complication of epileptic seizure characterized by reversible psychotic symptoms after flurries of seizure attack. It has been attributed to a phenomenon similar to Todd's paralysis without definitive proof. We studied regional cerebral blood flow (rCBF) of six patients with postictal psychosis by 99mTc-HMPAO SPECT scan. Baseline rCBF was compared with the rCBF during postictal psychosis. An asymmetry index (ASI) was calculated as 200 × [(ipsilateral ROI count density - contralateral ROI count density)/(ipsilateral ROI count density + contralateral ROI count density)] %. Significant differences could be found between ASIs during postictal psychosis and interictal state SPECT scan over the lateral temporal neocortex region (P = 0.017). Although hyperperfusion abnormality in SPECT can be found in Todd's paralysis, such findings are more commonly found in cerebral hyperactivity conditions. Taking into account the clinical characteristics of postictal psychosis, namely a preceding lucid interval and crescendo-decrescendo clinical course, these may be an alternative psychopathogenic mechanism for the development of postictal psychosis. © 2002 Elsevier Science (USA).en_US
dc.languageengen_US
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ynimgen_US
dc.relation.ispartofNeuroImageen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshBrain Ischemia - Radionuclide Imagingen_US
dc.subject.meshDelirium, Dementia, Amnestic, Cognitive Disorders - Radionuclide Imagingen_US
dc.subject.meshDominance, Cerebral - Physiologyen_US
dc.subject.meshElectroencephalographyen_US
dc.subject.meshEvoked Potentials - Physiologyen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshImage Processing, Computer-Assisteden_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshRegional Blood Flow - Physiologyen_US
dc.subject.meshTechnetium Tc 99M Exametazime - Diagnostic Useen_US
dc.subject.meshTemporal Lobe - Blood Supply - Radionuclide Imagingen_US
dc.subject.meshTomography, Emission-Computed, Single-Photonen_US
dc.titleLateral temporal hyperperfusion in postictal psychosis assessed by 99mTc-HMPAO SPECTen_US
dc.typeArticleen_US
dc.identifier.emailHo, SL:slho@hku.hken_US
dc.identifier.authorityHo, SL=rp00240en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1006/nimg.2002.1292en_US
dc.identifier.pmid12414301-
dc.identifier.scopuseid_2-s2.0-0036429114en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036429114&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue3en_US
dc.identifier.spage1634en_US
dc.identifier.epage1637en_US
dc.identifier.isiWOS:000179012800050-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridFong, GCY=7004978754en_US
dc.identifier.scopusauthoridHo, WY=25938053100en_US
dc.identifier.scopusauthoridTsoi, TH=7003314299en_US
dc.identifier.scopusauthoridFong, KY=8913866800en_US
dc.identifier.scopusauthoridHo, SL=25959633500en_US

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