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Article: Association of diffusion weighted imaging abnormalities and recurrence in transient global amnesia

TitleAssociation of diffusion weighted imaging abnormalities and recurrence in transient global amnesia
Authors
KeywordsDiffusion weighted imaging
Recurrence
Transient global amnesia
Issue Date2011
PublisherChurchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jocn
Citation
Journal Of Clinical Neuroscience, 2011, v. 18 n. 4, p. 531-534 How to Cite?
AbstractSince the first description of transient global amnesia (TGA) in 1964, its etiology has remained obscure. Reversible diffusion weighted imaging (DWI) hyperintensities in the hippocampus have been found on MRI of some patients with TGA during acute events. The implication of this is not well understood. We identified 47 patients with TGA between November 2004 and November 2009, and enrolled 27 patients with brain MRI within 72 hours of symptom onset for analysis and recorded subsequent relapse or stroke occurrence during follow-up. Nine of the 27 patients had reversible hippocampal punctuate hyperintensities, with complete resolution noted on a second MRI on average 4 months after the initial TGA. Patients with a first relapse (their second TGA attack) had a significantly higher association of DWI hippocampal abnormalities (p = 0.03) compared to patients with their first TGA event. None of the 27 patients had a stroke or further relapse during the mean follow-up period of 32.6 months. Thus, patients with recurrent TGA have a significantly higher association of reversible DWI abnormality. © 2010 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/135949
ISSN
2015 Impact Factor: 1.387
2015 SCImago Journal Rankings: 0.609
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorAuyeung, Men_HK
dc.contributor.authorTsoi, THen_HK
dc.contributor.authorCheung, CMen_HK
dc.contributor.authorFong, DYTen_HK
dc.contributor.authorLi, Ren_HK
dc.contributor.authorChan, JKWen_HK
dc.contributor.authorLau, KYen_HK
dc.date.accessioned2011-07-27T02:00:26Z-
dc.date.available2011-07-27T02:00:26Z-
dc.date.issued2011en_HK
dc.identifier.citationJournal Of Clinical Neuroscience, 2011, v. 18 n. 4, p. 531-534en_HK
dc.identifier.issn0967-5868en_HK
dc.identifier.urihttp://hdl.handle.net/10722/135949-
dc.description.abstractSince the first description of transient global amnesia (TGA) in 1964, its etiology has remained obscure. Reversible diffusion weighted imaging (DWI) hyperintensities in the hippocampus have been found on MRI of some patients with TGA during acute events. The implication of this is not well understood. We identified 47 patients with TGA between November 2004 and November 2009, and enrolled 27 patients with brain MRI within 72 hours of symptom onset for analysis and recorded subsequent relapse or stroke occurrence during follow-up. Nine of the 27 patients had reversible hippocampal punctuate hyperintensities, with complete resolution noted on a second MRI on average 4 months after the initial TGA. Patients with a first relapse (their second TGA attack) had a significantly higher association of DWI hippocampal abnormalities (p = 0.03) compared to patients with their first TGA event. None of the 27 patients had a stroke or further relapse during the mean follow-up period of 32.6 months. Thus, patients with recurrent TGA have a significantly higher association of reversible DWI abnormality. © 2010 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherChurchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jocnen_HK
dc.relation.ispartofJournal of Clinical Neuroscienceen_HK
dc.subjectDiffusion weighted imagingen_HK
dc.subjectRecurrenceen_HK
dc.subjectTransient global amnesiaen_HK
dc.subject.meshAmnesia, Transient Global - etiology - pathology-
dc.subject.meshDiffusion Magnetic Resonance Imaging-
dc.subject.meshHippocampus - pathology-
dc.subject.meshRecurrence-
dc.titleAssociation of diffusion weighted imaging abnormalities and recurrence in transient global amnesiaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0967-5868&volume=18&issue=4&spage=531&epage=534&date=2011&atitle=Association+of+diffusion+weighted+imaging+abnormalities+and+recurrence+in+transient+global+amnesia-
dc.identifier.emailFong, DYT: dytfong@hku.hken_HK
dc.identifier.authorityFong, DYT=rp00253en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jocn.2010.08.019en_HK
dc.identifier.pmid21316242-
dc.identifier.scopuseid_2-s2.0-79952127808en_HK
dc.identifier.hkuros187457en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79952127808&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume18en_HK
dc.identifier.issue4en_HK
dc.identifier.spage531en_HK
dc.identifier.epage534en_HK
dc.identifier.isiWOS:000289325300018-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridAuyeung, M=55006399200en_HK
dc.identifier.scopusauthoridTsoi, TH=7003314299en_HK
dc.identifier.scopusauthoridCheung, CM=7202061855en_HK
dc.identifier.scopusauthoridFong, DYT=35261710300en_HK
dc.identifier.scopusauthoridLi, R=36063386400en_HK
dc.identifier.scopusauthoridChan, JKW=8597975300en_HK
dc.identifier.scopusauthoridLau, KY=7401559926en_HK

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