Diagnostic accuracy of the magnetic resonance Parkinsonism index and the midbrain-to-pontine area ratio to differentiate progressive supranuclear palsy from Parkinson's disease and the Parkinson variant of multiple system atrophy.
Identifieur interne : 001544 ( PubMed/Curation ); précédent : 001543; suivant : 001545Diagnostic accuracy of the magnetic resonance Parkinsonism index and the midbrain-to-pontine area ratio to differentiate progressive supranuclear palsy from Parkinson's disease and the Parkinson variant of multiple system atrophy.
Auteurs : Anna Hussl [Autriche] ; Philipp Mahlknecht ; Christoph Scherfler ; Regina Esterhammer ; Michael Schocke ; Werner Poewe ; Klaus SeppiSource :
- Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2010.
English descriptors
- KwdEn :
- Aged, Female, Humans, Image Processing, Computer-Assisted (methods), Magnetic Resonance Imaging, Male, Mesencephalon (pathology), Middle Aged, Multiple System Atrophy (diagnosis), Neural Pathways (pathology), Parkinson Disease (diagnosis), Pons (pathology), Reference Values, Statistics as Topic, Supranuclear Palsy, Progressive (diagnosis).
- MESH :
- diagnosis : Multiple System Atrophy, Parkinson Disease, Supranuclear Palsy, Progressive.
- methods : Image Processing, Computer-Assisted.
- pathology : Mesencephalon, Neural Pathways, Pons.
- Aged, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Reference Values, Statistics as Topic.
Abstract
Using magnetic resonance (MR) planimetry, both the midbrain-to-pontine area ratio (m/p-ratio) and the MR parkinsonism index (MRPI) have been shown to assist in the differential diagnosis of progressive supranuclear palsy (PSP) from Parkinson's disease (PD) and the Parkinson variant of multiple system atrophy (MSA-P). The aim of this study was to determine the diagnostic accuracy of the MRPI compared with the m/p-ratio in a large cohort of 123 patients with neurodegenerative parkinsonism including patients with PSP, PD, and MSA-P. Patients with PSP had significant higher MRPI values and significant smaller m/p-ratios compared with the other groups with overlapping individual values. Overall predictive accuracy was similar for the m/p-ratio (87.0%) and the MRPI (80.5%) with a predictive accuracy for PSP from MSA-P being significantly better for the MRPI (87.5%) compared with the m/p-ratio (75%) as well as a predictive accuracy for PSP from PD being significantly better for the m/p-ratio (87.6%) compared with the MRPI (77.3%). Both the m/p-ratio and the MRPI may assist the clinical differential diagnosis in neurodegenerative parkinsonism.
DOI: 10.1002/mds.23351
PubMed: 20878992
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last="Scherfler">Christoph Scherfler</name></author><author><name sortKey="Esterhammer, Regina" sort="Esterhammer, Regina" uniqKey="Esterhammer R" first="Regina" last="Esterhammer">Regina Esterhammer</name></author><author><name sortKey="Schocke, Michael" sort="Schocke, Michael" uniqKey="Schocke M" first="Michael" last="Schocke">Michael Schocke</name></author><author><name sortKey="Poewe, Werner" sort="Poewe, Werner" uniqKey="Poewe W" first="Werner" last="Poewe">Werner Poewe</name></author><author><name sortKey="Seppi, Klaus" sort="Seppi, Klaus" uniqKey="Seppi K" first="Klaus" last="Seppi">Klaus Seppi</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="doi">10.1002/mds.23351</idno><idno type="RBID">pubmed:20878992</idno><idno type="pmid">20878992</idno><idno type="wicri:Area/PubMed/Corpus">001544</idno><idno type="wicri:Area/PubMed/Curation">001544</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Diagnostic accuracy of the magnetic resonance Parkinsonism index and the midbrain-to-pontine area ratio to differentiate progressive supranuclear palsy from Parkinson's disease and the Parkinson variant of multiple system atrophy.</title><author><name sortKey="Hussl, Anna" sort="Hussl, Anna" uniqKey="Hussl A" first="Anna" last="Hussl">Anna Hussl</name><affiliation wicri:level="1"><nlm:affiliation>Department of Neurology, Innsbruck Medical University, Innsbruck, Austria.</nlm:affiliation><country xml:lang="fr">Autriche</country><wicri:regionArea>Department of Neurology, Innsbruck Medical University, Innsbruck</wicri:regionArea></affiliation></author><author><name sortKey="Mahlknecht, Philipp" sort="Mahlknecht, Philipp" uniqKey="Mahlknecht P" first="Philipp" last="Mahlknecht">Philipp Mahlknecht</name></author><author><name sortKey="Scherfler, Christoph" sort="Scherfler, Christoph" uniqKey="Scherfler C" first="Christoph" last="Scherfler">Christoph Scherfler</name></author><author><name sortKey="Esterhammer, Regina" sort="Esterhammer, Regina" uniqKey="Esterhammer R" first="Regina" last="Esterhammer">Regina Esterhammer</name></author><author><name sortKey="Schocke, Michael" sort="Schocke, Michael" uniqKey="Schocke M" first="Michael" last="Schocke">Michael Schocke</name></author><author><name sortKey="Poewe, Werner" sort="Poewe, Werner" uniqKey="Poewe W" first="Werner" last="Poewe">Werner Poewe</name></author><author><name sortKey="Seppi, Klaus" sort="Seppi, Klaus" uniqKey="Seppi K" first="Klaus" last="Seppi">Klaus Seppi</name></author></analytic><series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title><idno type="eISSN">1531-8257</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Female</term><term>Humans</term><term>Image Processing, Computer-Assisted (methods)</term><term>Magnetic Resonance Imaging</term><term>Male</term><term>Mesencephalon (pathology)</term><term>Middle Aged</term><term>Multiple System Atrophy (diagnosis)</term><term>Neural Pathways (pathology)</term><term>Parkinson Disease (diagnosis)</term><term>Pons (pathology)</term><term>Reference Values</term><term>Statistics as Topic</term><term>Supranuclear Palsy, Progressive (diagnosis)</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Multiple System Atrophy</term><term>Parkinson Disease</term><term>Supranuclear Palsy, Progressive</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Image Processing, Computer-Assisted</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Mesencephalon</term><term>Neural Pathways</term><term>Pons</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Female</term><term>Humans</term><term>Magnetic Resonance Imaging</term><term>Male</term><term>Middle Aged</term><term>Reference Values</term><term>Statistics as Topic</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Using magnetic resonance (MR) planimetry, both the midbrain-to-pontine area ratio (m/p-ratio) and the MR parkinsonism index (MRPI) have been shown to assist in the differential diagnosis of progressive supranuclear palsy (PSP) from Parkinson's disease (PD) and the Parkinson variant of multiple system atrophy (MSA-P). The aim of this study was to determine the diagnostic accuracy of the MRPI compared with the m/p-ratio in a large cohort of 123 patients with neurodegenerative parkinsonism including patients with PSP, PD, and MSA-P. Patients with PSP had significant higher MRPI values and significant smaller m/p-ratios compared with the other groups with overlapping individual values. Overall predictive accuracy was similar for the m/p-ratio (87.0%) and the MRPI (80.5%) with a predictive accuracy for PSP from MSA-P being significantly better for the MRPI (87.5%) compared with the m/p-ratio (75%) as well as a predictive accuracy for PSP from PD being significantly better for the m/p-ratio (87.6%) compared with the MRPI (77.3%). Both the m/p-ratio and the MRPI may assist the clinical differential diagnosis in neurodegenerative parkinsonism.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">20878992</PMID><DateCreated><Year>2010</Year><Month>10</Month><Day>26</Day></DateCreated><DateCompleted><Year>2011</Year><Month>02</Month><Day>22</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1531-8257</ISSN><JournalIssue CitedMedium="Internet"><Volume>25</Volume><Issue>14</Issue><PubDate><Year>2010</Year><Month>Oct</Month><Day>30</Day></PubDate></JournalIssue><Title>Movement disorders : official journal of the Movement Disorder Society</Title><ISOAbbreviation>Mov. Disord.</ISOAbbreviation></Journal><ArticleTitle>Diagnostic accuracy of the magnetic resonance Parkinsonism index and the midbrain-to-pontine area ratio to differentiate progressive supranuclear palsy from Parkinson's disease and the Parkinson variant of multiple system atrophy.</ArticleTitle><Pagination><MedlinePgn>2444-9</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/mds.23351</ELocationID><Abstract><AbstractText>Using magnetic resonance (MR) planimetry, both the midbrain-to-pontine area ratio (m/p-ratio) and the MR parkinsonism index (MRPI) have been shown to assist in the differential diagnosis of progressive supranuclear palsy (PSP) from Parkinson's disease (PD) and the Parkinson variant of multiple system atrophy (MSA-P). The aim of this study was to determine the diagnostic accuracy of the MRPI compared with the m/p-ratio in a large cohort of 123 patients with neurodegenerative parkinsonism including patients with PSP, PD, and MSA-P. Patients with PSP had significant higher MRPI values and significant smaller m/p-ratios compared with the other groups with overlapping individual values. Overall predictive accuracy was similar for the m/p-ratio (87.0%) and the MRPI (80.5%) with a predictive accuracy for PSP from MSA-P being significantly better for the MRPI (87.5%) compared with the m/p-ratio (75%) as well as a predictive accuracy for PSP from PD being significantly better for the m/p-ratio (87.6%) compared with the MRPI (77.3%). 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