Cortical hypometabolism assessed by a metabolic ratio in Parkinson's disease primarily reflects cognitive deterioration—[18F]FDG‐PET
Identifieur interne : 000B26 ( Main/Exploration ); précédent : 000B25; suivant : 000B27Cortical hypometabolism assessed by a metabolic ratio in Parkinson's disease primarily reflects cognitive deterioration—[18F]FDG‐PET
Auteurs : Inga Liepelt [Allemagne] ; Matthias Reimold [Allemagne] ; Walter Maetzler [Allemagne] ; Jana Godau [Allemagne] ; Gerald Reischl [Allemagne] ; Alexandra Gaenslen [Allemagne] ; Heinz Herbst [Allemagne] ; Daniela Berg [Allemagne]Source :
- Movement Disorders [ 0885-3185 ] ; 2009-07-30.
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Abstract
In Parkinson's disease patients with cognitive deterioration, regional cortical hypometabolism has been observed with [18F]fluorodeoxyglucose‐positron emission tomography (FDG‐PET). Our aim was to develop a robust method to subsume the overall degree of metabolic deterioration in Parkinson's disease by means of a single index and to investigate which of the clinical features correlates best with hypometabolism. Twenty‐two Parkinson's patients (10 demented) and seven controls underwent FDG‐PET. A metabolic index (mean relative uptake in typically affected regions) was calculated for each patient and compared with scores for cognition [Minimental State Examination (MMSE)], motor performance [Unified Parkinson's Disease Rating Scale (UPDRS III)” and behavior (Neuropsychiatric Inventory). In stepwise linear regression analysis, MMSE (P < 0.001) score showed the only significant effect. Estimated sensitivity and specificity for DSM‐IV diagnosis of dementia were high for the metabolic index (MI), with 91 and 100%. Taken together, the presented data indicate that cerebral hypometabolism in Parkinson's disease is primarily associated with cognitive impairment. © 2009 Movement Disorder Society
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DOI: 10.1002/mds.22662
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Our aim was to develop a robust method to subsume the overall degree of metabolic deterioration in Parkinson's disease by means of a single index and to investigate which of the clinical features correlates best with hypometabolism. Twenty‐two Parkinson's patients (10 demented) and seven controls underwent FDG‐PET. A metabolic index (mean relative uptake in typically affected regions) was calculated for each patient and compared with scores for cognition [Minimental State Examination (MMSE)], motor performance [Unified Parkinson's Disease Rating Scale (UPDRS III)” and behavior (Neuropsychiatric Inventory). In stepwise linear regression analysis, MMSE (P < 0.001) score showed the only significant effect. Estimated sensitivity and specificity for DSM‐IV diagnosis of dementia were high for the metabolic index (MI), with 91 and 100%. Taken together, the presented data indicate that cerebral hypometabolism in Parkinson's disease is primarily associated with cognitive impairment. © 2009 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>Bade-Wurtemberg</li><li>District de Stuttgart</li><li>District de Tübingen</li></region><settlement><li>Stuttgart</li><li>Tübingen</li></settlement></list><tree><country name="Allemagne"><region name="Bade-Wurtemberg"><name sortKey="Liepelt, Inga" sort="Liepelt, Inga" uniqKey="Liepelt I" first="Inga" last="Liepelt">Inga Liepelt</name></region><name sortKey="Berg, Daniela" sort="Berg, Daniela" uniqKey="Berg D" first="Daniela" last="Berg">Daniela Berg</name><name sortKey="Gaenslen, Alexandra" sort="Gaenslen, Alexandra" uniqKey="Gaenslen A" first="Alexandra" last="Gaenslen">Alexandra Gaenslen</name><name sortKey="Godau, Jana" sort="Godau, Jana" uniqKey="Godau J" first="Jana" last="Godau">Jana Godau</name><name sortKey="Herbst, Heinz" sort="Herbst, Heinz" uniqKey="Herbst H" first="Heinz" last="Herbst">Heinz Herbst</name><name sortKey="Maetzler, Walter" sort="Maetzler, Walter" uniqKey="Maetzler W" first="Walter" last="Maetzler">Walter Maetzler</name><name sortKey="Reimold, Matthias" sort="Reimold, Matthias" uniqKey="Reimold M" first="Matthias" last="Reimold">Matthias Reimold</name><name sortKey="Reischl, Gerald" sort="Reischl, Gerald" uniqKey="Reischl G" first="Gerald" last="Reischl">Gerald Reischl</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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