Thalamic atrophy and cognition in multiple sclerosis

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Clear Search Advanced Search Thalamic atrophy and cognition in multiple sclerosis. (PMID:17875909) Houtchens MK, Benedict RH, Killiany R, Sharma J, Jaisani Z, Singh B, Weinstock-Guttman B, Guttmann CR, Bakshi R Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Partners MS Center, Boston, MA 02115, USA. Neurology [2007, 69(12):1213-23] Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural DOI: 10.1212/01.wnl.0000276992.17011.b5 Abstract Highlight Terms Diseases(4) Chemicals(1) OBJECTIVES: Recent studies have indicated that brain atrophy is more closely associated with cognitive impairment in multiple sclerosis (MS) than are conventional MRI lesion measures. Enlargement of the third ventricle shows a particularly strong correlation with cognitive impairment, suggesting clinical relevance of damage to surrounding structures, such as the thalamus. Previous imaging and pathology studies have demonstrated thalamic involvement in MS. In this study, we tested the hypothesis that thalamic volume is lower in MS than in normal subjects, and that thalamic atrophy in MS correlates with cognitive function. METHODS: We studied 79 patients with MS and 16 normal subjects. A subgroup of 31 MS subjects underwent cognitive testing. The thalamus was segmented in whole from three-dimensional MRI scans. We also determined whole brain atrophy (brain parenchymal fraction), third ventricular width, and whole brain T2-weighted (fluid-attenuated inversion recovery) hyperintense, T1 hypointense, and gadolinium-enhanced lesion volumes. RESULTS: Normalized thalamic volume was 16.8% lower in the MS group (p < 0.0001) vs controls. Cognitive performance in all domains was moderately to strongly related to thalamic volume in the MS group (r = 0.506 to 0.724, p < 0.005), and thalamic volume entered and remained in all regression models predicting cognitive performance. Thalamic volume showed a weak relationship to physical disability score (r = -0.316, p = 0.005). CONCLUSION: These findings suggest that thalamic atrophy is a clinically relevant biomarker of the neurodegenerative disease process in multiple sclerosis. Read Article at intl.neurology.org (Subscription required) How does UK PubMed Central derive its citations network? Cited By - displaying 17 of 17 citations Web of Science® times cited ( 48)- subscription required Brain atrophy as a marker of cognitive impairment in mildly disabling relapsing-remitting multiple sclerosis. (PMID:18727673) Short-latency afferent inhibition predicts verbal memory performance in patients with multiple sclerosis. (PMID:18854915) Cognitive changes in multiple sclerosis. (PMID:18928350) Strongly reduced volumes of putamen and thalamus in Alzheimer's disease: an MRI study. (PMID:19022861) Genotype-Phenotype correlations in multiple sclerosis: HLA genes influence disease severity inferred by 1HMR spectroscopy and MRI measures. (PMID:19022862) Deep gray matter T2 hypointensity correlates with disability in a murine model of MS. (PMID:19162280) Deep gray matter atrophy in multiple sclerosis: a tensor based morphometry. (PMID:19168189) 3 T MRI relaxometry detects T2 prolongation in the cerebral normal-appearing white matter in multiple sclerosis. (PMID:19281850) Thalamic atrophy and cognition in multiple sclerosis. - Abstract - UK Pu... http://ukpmc.ac.uk/abstract/MED/17875909 1 of 18 5/19/2011 8:56 PM

Transcript of Thalamic atrophy and cognition in multiple sclerosis

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Thalamic atrophy and cognition in multiple sclerosis.(PMID:17875909)

Houtchens MK, Benedict RH, Killiany R, Sharma J, Jaisani Z, Singh B, Weinstock-Guttman B, Guttmann CR, Bakshi R

Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Partners MS Center, Boston, MA 02115, USA.Neurology [2007, 69(12):1213-23]

Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural

DOI: 10.1212/01.wnl.0000276992.17011.b5

Abstract Highlight Terms

Diseases(4) Chemicals(1)

OBJECTIVES: Recent studies have indicated that brain atrophy is more closely associated with cognitive impairment in multiplesclerosis (MS) than are conventional MRI lesion measures. Enlargement of the third ventricle shows a particularly strongcorrelation with cognitive impairment, suggesting clinical relevance of damage to surrounding structures, such as the thalamus.Previous imaging and pathology studies have demonstrated thalamic involvement in MS. In this study, we tested the hypothesisthat thalamic volume is lower in MS than in normal subjects, and that thalamic atrophy in MS correlates with cognitive function.

METHODS: We studied 79 patients with MS and 16 normal subjects. A subgroup of 31 MS subjects underwent cognitive testing.The thalamus was segmented in whole from three-dimensional MRI scans. We also determined whole brain atrophy (brainparenchymal fraction), third ventricular width, and whole brain T2-weighted (fluid-attenuated inversion recovery) hyperintense,T1 hypointense, and gadolinium-enhanced lesion volumes.

RESULTS: Normalized thalamic volume was 16.8% lower in the MS group (p < 0.0001) vs controls. Cognitive performance in alldomains was moderately to strongly related to thalamic volume in the MS group (r = 0.506 to 0.724, p < 0.005), and thalamicvolume entered and remained in all regression models predicting cognitive performance. Thalamic volume showed a weakrelationship to physical disability score (r = -0.316, p = 0.005).

CONCLUSION: These findings suggest that thalamic atrophy is a clinically relevant biomarker of the neurodegenerative diseaseprocess in multiple sclerosis.

Read Article at intl.neurology.org (Subscription required)

How does UK PubMed Central derive its citations network?

Cited By - displaying 17 of 17 citations • Web of Science® times cited(48)- subscription required

Brain atrophy as a marker of cognitive impairment in mildly disabling relapsing-remitting multiple sclerosis.

(PMID:18727673)

Short-latency afferent inhibition predicts verbal memory performance in patients with multiple sclerosis.

(PMID:18854915)

Cognitive changes in multiple sclerosis.

(PMID:18928350)

Strongly reduced volumes of putamen and thalamus in Alzheimer's disease: an MRI study.

(PMID:19022861)

Genotype-Phenotype correlations in multiple sclerosis: HLA genes influence disease severity inferred by 1HMR spectroscopy and MRI measures.

(PMID:19022862)

Deep gray matter T2 hypointensity correlates with disability in a murine model of MS.

(PMID:19162280)

Deep gray matter atrophy in multiple sclerosis: a tensor based morphometry.

(PMID:19168189)

3 T MRI relaxometry detects T2 prolongation in the cerebral normal-appearing white matter in multiple sclerosis.

(PMID:19281850)

Thalamic atrophy and cognition in multiple sclerosis. - Abstract - UK Pu... http://ukpmc.ac.uk/abstract/MED/17875909

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Archives of neurology [2002 Jan;59(1):62-8]

Brain atrophy and lesion load as explaining parameters for cognitive impairment in multiple sclerosis.

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Thalamic atrophy and cognition in multiple sclerosis. - Abstract - UK Pu... http://ukpmc.ac.uk/abstract/MED/17875909

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Thalamic atrophy and cognition in multiple sclerosis. - Abstract - UK Pu... http://ukpmc.ac.uk/abstract/MED/17875909

18 of 18 5/19/2011 8:56 PM