Abstract:
OBJECTIVE:T2-weighted magnetic resonance imaging is a sensitive tool for monitoring progression of multiple sclerosis, but it does not provide information on the severity of the underlying tissue damage. Measurement of T1 hypointensities and magnetization transfer ratio (MTR) can potentially distinguish lesions with more severe tissue damage. The objective of this study was to use image-guided pathology to determine histological differences between lesions that are abnormal only on T2-weighted images versus lesions that are abnormal on T2-weighted, T1-weighted, and MTR images. METHODS:A total of 110 regions were selected from postmortem magnetic resonance images of 10 multiple sclerosis patients. Regions were classified into three magnetic resonance imaging-defined categories: normal-appearing white matter; abnormal on T2-weighted image only (T2-only); and abnormal on T2-weighted, T1-weighted, and MTR images (T2T1MTR). Myelin status, lesion activity, astrocytosis, serum protein distribution, axonal area, and axonal loss were evaluated histopathologically. RESULTS:Comparisons between groups showed that T2T1MTR regions were more likely to be demyelinated (83% compared with 55% of T2-only regions) and more likely to be chronic inactive lesions (68% compared with 0% of demyelinated T2-only regions). There was no difference between T2-only and T2T1MTR regions in axonal area, but there was a significant difference in axonal count, indicating that axons in the T2T1MTR regions were enlarged relative to those in T2-only regions. INTERPRETATION:Axonal swelling and axonal loss were major pathological features that distinguish T2T1MTR regions from T2-only regions.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Fisher E,Chang A,Fox RJ,Tkach JA,Svarovsky T,Nakamura K,Rudick RA,Trapp BDdoi
10.1002/ana.21113subject
Has Abstractpub_date
2007-09-01 00:00:00pages
219-28issue
3eissn
0364-5134issn
1531-8249journal_volume
62pub_type
杂志文章abstract::Although the basal ganglia have been implicated in the development of movement disorders since the 1940s, the exact role played by these structures has remained elusive. The development of the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-monkey model of parkinsonism, and the recent resurgence of surgical therapy for t...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVE:Infantile spasms are seizures associated with a severe epileptic encephalopathy presenting in the first 2 years of life, and optimal treatment continues to be debated. This study evaluates early and sustained response to initial treatments and addresses both clinical remission and electrographic resolution of...
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.1252
更新日期:2001-12-01 00:00:00
abstract::In Machado-Joseph disease (MJD) gene, there is a C/G polymorphism immediately after the CAG repeat; the expanded CAG repeat tract is exclusively followed by C, whereas about half of wild-type alleles are followed by G. Using this C/G polymorphism, we have engineered the small interfering RNA (siRNA) which decreased th...
journal_title:Annals of neurology
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doi:10.1002/ana.20141
更新日期:2004-07-01 00:00:00
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doi:10.1002/ana.24151
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170213
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abstract::Patients with Hodgkin's disease can develop paraneoplastic cerebellar ataxia because of the generation of autoantibodies against mGluR1 (mGluR1-Abs). Yet, the pathophysiological mechanisms underlying their motor coordination deficits remain to be elucidated. Here, we show that application of IgG purified from the pati...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10451
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20777
更新日期:2006-02-01 00:00:00
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doi:10.1002/ana.410390604
更新日期:1996-06-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030522
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410150216
更新日期:1984-02-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24713
更新日期:2016-08-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.21012
更新日期:2006-11-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25788
更新日期:2020-08-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25232
更新日期:2018-05-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.21755
更新日期:2009-10-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140212
更新日期:1983-08-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/ana.22499
更新日期:2012-01-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
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更新日期:2011-02-01 00:00:00
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pub_type: 杂志文章
doi:10.1002/ana.410200614
更新日期:1986-12-01 00:00:00
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pub_type: 杂志文章,评审
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journal_title:Annals of neurology
pub_type: 杂志文章,meta分析,多中心研究
doi:10.1002/ana.25079
更新日期:2017-11-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410250404
更新日期:1989-04-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050406
更新日期:1979-04-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/1531-8249(199903)45:3<407::aid-ana21>3.0.c
更新日期:1999-03-01 00:00:00
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journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.410040111
更新日期:1978-07-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章,meta分析
doi:10.1002/ana.20017
更新日期:2004-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:1996-07-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170412
更新日期:1985-04-01 00:00:00