Voxel-wise analysis of [123I]β-CIT SPECT differentiates the Parkinson variant of multiple system atrophy from idiopathic Parkinson's disease
Identifieur interne : 001390 ( Main/Exploration ); précédent : 001389; suivant : 001391Voxel-wise analysis of [123I]β-CIT SPECT differentiates the Parkinson variant of multiple system atrophy from idiopathic Parkinson's disease
Auteurs : Christoph Scherfler ; Klaus Seppi ; Eveline Donnemiller ; Georg Goebel [Autriche] ; Christian Brenneis ; Irene Virgolini ; Gregor K. Wenning ; Werner Poewe [Autriche]Source :
- Brain [ 0006-8950 ] ; 2005-07.
English descriptors
- KwdEn :
- AI = asymmetry index, CI = confidence interval, DAT = dopamine transporter, FDG = fluorodesoxyglucose, FWHM = full width at half maximum, H&Y = Hoehn and Yahr, IPD = idiopathic Parkinson's disease, MNI = Montreal Neurological Institute, MSA-P = parkinsonian-variant of MSA, NAT = noradrenergic transporter, PET = positron emission tomography, ROI = region of interest, SERT = serotonin transporter, SPECT = single photon emission computed tomography, SPM = statistical parametric mapping, UPDRS = Unified Parkinson's Disease Rating Scale, V3″ = specific-to-nondisplaceable equilibrium partition coefficient, [123I]β-CIT = [123I]-2β-carbomethoxy-3β-(4-iodophenyl)tropane, [123I]β-CIT SPECT, discriminant analysis, idiopathic Parkinson's disease, multiple system atrophy, statistical parametric mapping.
Abstract
To investigate the cerebral dopamine transporter status in the early stages of the parkinson-variant of multiple system atrophy (MSA-P), 15 patients with MSA-P and a disease duration up to 3 years were studied with [123I]β-CIT single photon emission computed tomography (SPECT). Data were compared with 13 age-matched healthy control subjects and 15 patients with idiopathic Parkinson's disease (IPD), matched for age and disease duration. Parametric SPECT images of the specific-to-nondisplaceable equilibrium partition coefficient (V3″), which is proportional to the receptor density (Bmax) have been generated. To objectively localize focal changes in dopaminergic function throughout the entire brain volume without having to make an a priori hypothesis as to their location, statistical parametric mapping (SPM) was applied to our [123I]β-CIT SPECT study. Both MSA-P and IPD patients showed significant decreases in striatal [123I]β-CIT SPECT uptake. However, in MSA-P patients an additional reduction in midbrain [123I]β-CIT signal was localized with SPM compared with control subjects (MSA-P, V3″: 0.89 ± 0.37 versus controls V3″: 1.81 ± 0.38; P < 0.001) and patients with IPD (V3″: 1.84 ± 0.26; P < 0.001). Stepwise linear discriminant analysis of mean [123I]β-CIT uptake in the putamen, caudate and midbrain identified the caudate and midbrain as indices to classify correctly 95.2% of subjects as either normal, patients with MSA-P or IPD. Voxel-wise analysis of [123I]β-CIT SPECT revealed more widespread decline of monoaminergic transporter availability in MSA-P compared with IPD, matching the underlying pathological features. We suggest that the quantification of midbrain DAT signal should be included in the routine clinical analysis of [123I]β-CIT SPECT in patients with uncertain parkinsonism.
Url:
DOI: 10.1093/brain/awh485
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Wenning</name><affiliation><wicri:noCountry code="subField"></wicri:noCountry></affiliation><affiliation><wicri:noCountry code="no comma">Departments of</wicri:noCountry></affiliation></author><author><name sortKey="Poewe, Werner" sort="Poewe, Werner" uniqKey="Poewe W" first="Werner" last="Poewe">Werner Poewe</name><affiliation><wicri:noCountry code="subField"></wicri:noCountry><country>Autriche</country><placeName><settlement type="city">Innsbruck</settlement><region nuts="2" type="region">Tyrol (Land)</region></placeName><orgName type="university">Université de médecine d'Innsbruck</orgName></affiliation><affiliation><wicri:noCountry code="no comma">Departments of</wicri:noCountry><country>Autriche</country><placeName><settlement type="city">Innsbruck</settlement><region nuts="2" type="region">Tyrol (Land)</region></placeName><orgName type="university">Université de médecine d'Innsbruck</orgName></affiliation></author></analytic><monogr></monogr><series><title level="j">Brain</title><title level="j" type="abbrev">Brain</title><idno type="ISSN">0006-8950</idno><idno type="eISSN">1460-2156</idno><imprint><publisher>Oxford University Press</publisher><date type="published" when="2005-07">2005-07</date><biblScope unit="volume">128</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="1605">1605</biblScope><biblScope unit="page" to="1612">1612</biblScope></imprint><idno type="ISSN">0006-8950</idno></series><idno type="istex">F5E73C8A589AD447662FC52F09A6D30B49D373A5</idno><idno type="DOI">10.1093/brain/awh485</idno><idno type="local">awh485</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0006-8950</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>AI = asymmetry index</term><term>CI = confidence interval</term><term>DAT = dopamine transporter</term><term>FDG = fluorodesoxyglucose</term><term>FWHM = full width at half maximum</term><term>H&Y = Hoehn and Yahr</term><term>IPD = idiopathic Parkinson's disease</term><term>MNI = Montreal Neurological Institute</term><term>MSA-P = parkinsonian-variant of MSA</term><term>NAT = noradrenergic transporter</term><term>PET = positron emission tomography</term><term>ROI = region of interest</term><term>SERT = serotonin transporter</term><term>SPECT = single photon emission computed tomography</term><term>SPM = statistical parametric mapping</term><term>UPDRS = Unified Parkinson's Disease Rating Scale</term><term>V3″ = specific-to-nondisplaceable equilibrium partition coefficient</term><term>[123I]β-CIT = [123I]-2β-carbomethoxy-3β-(4-iodophenyl)tropane</term><term>[123I]β-CIT SPECT</term><term>discriminant analysis</term><term>idiopathic Parkinson's disease</term><term>multiple system atrophy</term><term>statistical parametric mapping</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To investigate the cerebral dopamine transporter status in the early stages of the parkinson-variant of multiple system atrophy (MSA-P), 15 patients with MSA-P and a disease duration up to 3 years were studied with [123I]β-CIT single photon emission computed tomography (SPECT). Data were compared with 13 age-matched healthy control subjects and 15 patients with idiopathic Parkinson's disease (IPD), matched for age and disease duration. Parametric SPECT images of the specific-to-nondisplaceable equilibrium partition coefficient (V3″), which is proportional to the receptor density (Bmax) have been generated. To objectively localize focal changes in dopaminergic function throughout the entire brain volume without having to make an a priori hypothesis as to their location, statistical parametric mapping (SPM) was applied to our [123I]β-CIT SPECT study. Both MSA-P and IPD patients showed significant decreases in striatal [123I]β-CIT SPECT uptake. However, in MSA-P patients an additional reduction in midbrain [123I]β-CIT signal was localized with SPM compared with control subjects (MSA-P, V3″: 0.89 ± 0.37 versus controls V3″: 1.81 ± 0.38; P < 0.001) and patients with IPD (V3″: 1.84 ± 0.26; P < 0.001). Stepwise linear discriminant analysis of mean [123I]β-CIT uptake in the putamen, caudate and midbrain identified the caudate and midbrain as indices to classify correctly 95.2% of subjects as either normal, patients with MSA-P or IPD. Voxel-wise analysis of [123I]β-CIT SPECT revealed more widespread decline of monoaminergic transporter availability in MSA-P compared with IPD, matching the underlying pathological features. We suggest that the quantification of midbrain DAT signal should be included in the routine clinical analysis of [123I]β-CIT SPECT in patients with uncertain parkinsonism.</div></front></TEI><affiliations><list><country><li>Autriche</li></country><region><li>Tyrol (Land)</li></region><settlement><li>Innsbruck</li></settlement><orgName><li>Université de médecine d'Innsbruck</li></orgName></list><tree><noCountry><name sortKey="Brenneis, Christian" sort="Brenneis, Christian" uniqKey="Brenneis C" first="Christian" last="Brenneis">Christian Brenneis</name><name sortKey="Donnemiller, Eveline" sort="Donnemiller, Eveline" uniqKey="Donnemiller E" first="Eveline" last="Donnemiller">Eveline Donnemiller</name><name sortKey="Scherfler, Christoph" sort="Scherfler, Christoph" uniqKey="Scherfler C" first="Christoph" last="Scherfler">Christoph Scherfler</name><name sortKey="Seppi, Klaus" sort="Seppi, Klaus" uniqKey="Seppi K" first="Klaus" last="Seppi">Klaus Seppi</name><name sortKey="Virgolini, Irene" sort="Virgolini, Irene" uniqKey="Virgolini I" first="Irene" last="Virgolini">Irene Virgolini</name><name sortKey="Wenning, Gregor K" sort="Wenning, Gregor K" uniqKey="Wenning G" first="Gregor K." last="Wenning">Gregor K. Wenning</name></noCountry><country name="Autriche"><noRegion><name sortKey="Goebel, Georg" sort="Goebel, Georg" uniqKey="Goebel G" first="Georg" last="Goebel">Georg Goebel</name></noRegion><name sortKey="Poewe, Werner" sort="Poewe, Werner" uniqKey="Poewe W" first="Werner" last="Poewe">Werner Poewe</name><name sortKey="Poewe, Werner" sort="Poewe, Werner" uniqKey="Poewe W" first="Werner" last="Poewe">Werner Poewe</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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