<?xml version="1.0" encoding="UTF-8"?><mets:mets xmlns:mads="http://www.loc.gov/mads/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:tef="http://www.abes.fr/abes/documents/tef" xmlns:metsRights="http://cosimo.stanford.edu/sdr/metsrights/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mets="http://www.loc.gov/METS/">
	

	<mets:metsHdr ID="rennes1-ori-wf-1-21858" RECORDSTATUS="complet" CREATEDATE="2025-11-13T15:09:07" LASTMODDATE="2025-11-13T15:20:45">
  <mets:agent ROLE="CREATOR">
			<mets:name>SCD-Universite de Rennes 1</mets:name>
		</mets:agent>
</mets:metsHdr>

	<mets:dmdSec ID="desc_expr" CREATED="2025-11-13T15:09:07">
  <mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_desc_these">
			<mets:xmlData>
				<tef:thesisRecord>
     <dc:title xml:lang="fr">Développement à 3 T des méthodes d’IRM quantitatives CEST et QSM dans le contexte de la maladie de Parkinson</dc:title>
     <dcterms:alternative xml:lang="en">3 T Development of quantitative MRI methods CEST and QSM in the context of Parkinson's disease</dcterms:alternative>
     <dc:subject xml:lang="fr">Maladie de Parkinson</dc:subject><dc:subject xml:lang="fr">diagnostic précoce</dc:subject><dc:subject xml:lang="fr">IRM quantitative</dc:subject><dc:subject xml:lang="fr">CEST</dc:subject><dc:subject xml:lang="fr">QSM</dc:subject>
     <dc:subject xml:lang="en">Parkinson's disease</dc:subject><dc:subject xml:lang="en">early diagnosis</dc:subject><dc:subject xml:lang="en">quantitative MRI</dc:subject><dc:subject xml:lang="en">CEST</dc:subject><dc:subject xml:lang="en">QSM</dc:subject>
     <tef:sujetRameau><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027794245">Maladie de Parkinson</tef:elementdEntree>
      <tef:subdivision autoriteSource="Sudoc" type="subdivisionDeSujet" autoriteExterne="028921011">Imagerie par résonance magnétique</tef:subdivision>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="278594638">Diagnostic précoce</tef:elementdEntree>
					</tef:vedetteRameauNomCommun></tef:sujetRameau>
     
     <dcterms:abstract xml:lang="fr">La maladie de Parkinson est la deuxième maladie neurodégénérative la plus répandue dans le monde. L’apparition des premières modifications physiologiques liées à la maladie peuvent apparaître jusqu’à 15 ans avant les premiers tremblements. L’objectif de ces travaux est de développer des méthodes d’IRM quantitatives permettant de quantifier avec précision deux neuromarqueurs de la maladie. Le premier neuromarqueur identifié est un dépôt anormal de fer dans les noyaux gris centraux du cerveau. Des approches d’acquisition IRM pondérées en susceptibilité magnétique ont été optimisées pour obtenir un temps d’acquisition réduit couplé avec une quantification robuste. La partie reconstruction des cartes de susceptibilité magnétique a permis d’identifier une chaîne de traitement suffisamment robuste pour distinguer deux groupes d’âge. Le second neuromarqueur est l’agrégation la protéine alpha-synucléine. Des approches d’acquisition par CEST (chemical exchange saturation transfer) ont été développées pour cibler au mieux les protéines de manière non-invasive. Une séquence a notamment été développée en ce sens. Ces différentes approches ont permis d’affiner la quantification et visualisation de neuromarqueurs liés à la maladie de Parkinson. Elles pourront servir en clinique à orienter au plus tôt les patients vers une offre thérapeutique adaptée.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">Parkinson’s disease is the second most common neurodegenerative disorder worldwide. The first physiological changes related to the disease can appear up to 15 years before the onset of tremors. The objective of this work is to develop quantitative MRI methods to accurately quantify two neuromarkers of the disease. The first identified neuromarker is abnormal iron deposition in the basal ganglia of the brain. MRI acquisition approaches based on magnetic susceptibility weighting have been optimized to achieve reduced acquisition times combined with robust quantification. The reconstruction of magnetic susceptibility maps enabled the identification of a sufficiently robust processing pipeline to distinguish between two age groups. The second identified neuromarker is the aggregation of the alpha-synuclein protein. Chemical Exchange Saturation Transfer (CEST) MRI acquisition techniques were developed to better target proteins in a non-invasive manner. A dedicated sequence was specifically developed for this purpose. These different approaches have improved the quantification and visualization of neuromarkers related to Parkinson’s disease. They could be used clinically to guide patients toward appropriate therapeutic options as early as possible.</dcterms:abstract>
     <dc:type>Electronic Thesis or Dissertation</dc:type><dc:type xsi:type="dcterms:DCMIType">Text</dc:type>
     <dc:language xsi:type="dcterms:RFC3066">fr</dc:language>
    </tef:thesisRecord>
			</mets:xmlData>
		</mets:mdWrap>
</mets:dmdSec>
	
	<mets:dmdSec ID="desc_edition" CREATED="2025-11-13T15:09:07">
  <mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_desc_edition">
			<mets:xmlData>
				<tef:edition><dcterms:medium xsi:type="dcterms:IMT">application/pdf</dcterms:medium><dcterms:extent>1 : 7520 Ko</dcterms:extent><dc:identifier xsi:type="dcterms:URI">https://ged.univ-rennes1.fr/nuxeo/site/esupversions/588cd641-b517-4c8f-b0ee-fb68eb25a5a1</dc:identifier></tef:edition>
			</mets:xmlData>
		</mets:mdWrap>
</mets:dmdSec>

	<mets:amdSec>
		<mets:techMD ID="admin_expr">
			<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_admin_these">
				<mets:xmlData>
					<tef:thesisAdmin>
      <tef:auteur>
       <tef:nom>Hervouin</tef:nom>
       <tef:prenom>Aurélien</tef:prenom>
       
       <tef:dateNaissance>1998-03-05</tef:dateNaissance>
       <tef:nationalite scheme="ISO-3166-1">FR</tef:nationalite>
       <tef:autoriteExterne autoriteSource="Sudoc">297495577</tef:autoriteExterne>
       <tef:autoriteExterne autoriteSource="mailPerso">aurelien.hervouin@gmail.com</tef:autoriteExterne>
      </tef:auteur>
      <dc:identifier xsi:type="tef:NNT">2025URENS107</dc:identifier>
      <dc:identifier xsi:type="tef:nationalThesisPID">http://www.theses.fr/2025URENS107</dc:identifier>
      <dcterms:dateAccepted xsi:type="dcterms:W3CDTF">2025-12-17</dcterms:dateAccepted>
      <tef:thesis.degree>
							<tef:thesis.degree.discipline xml:lang="fr">Signal, image, vision</tef:thesis.degree.discipline>
							<tef:thesis.degree.grantor>
        <tef:nom>Université de Rennes</tef:nom><tef:autoriteInterne>thesis.degree.grantor_1</tef:autoriteInterne>
        
        <tef:autoriteExterne autoriteSource="Sudoc">26693823X</tef:autoriteExterne>
       </tef:thesis.degree.grantor>
							<tef:thesis.degree.level>Doctorat</tef:thesis.degree.level>
						</tef:thesis.degree>
      <tef:theseSurTravaux>non</tef:theseSurTravaux>
      <tef:avisJury>oui</tef:avisJury><tef:directeurThese><tef:nom>Bézy-Wendling</tef:nom><tef:prenom>Johanne</tef:prenom><tef:autoriteInterne>intervenant_1</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">129992437</tef:autoriteExterne></tef:directeurThese><tef:directeurThese><tef:nom>Noury</tef:nom><tef:prenom>Fanny</tef:prenom><tef:autoriteInterne>intervenant_2</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">154756946</tef:autoriteExterne></tef:directeurThese><tef:presidentJury><tef:nom>Kuchcinski‎</tef:nom><tef:prenom>Grégory</tef:prenom><tef:autoriteInterne>intervenant_3</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">136893619</tef:autoriteExterne></tef:presidentJury><tef:membreJury><tef:nom>Bézy-Wendling</tef:nom><tef:prenom>Johanne</tef:prenom><tef:autoriteInterne>intervenant_1</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">129992437</tef:autoriteExterne></tef:membreJury><tef:membreJury><tef:nom>Noury</tef:nom><tef:prenom>Fanny</tef:prenom><tef:autoriteInterne>intervenant_2</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">154756946</tef:autoriteExterne></tef:membreJury><tef:membreJury><tef:nom>Flament</tef:nom><tef:prenom>Julien</tef:prenom><tef:autoriteInterne>intervenant_6</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">161345719</tef:autoriteExterne></tef:membreJury><tef:rapporteur><tef:nom>Beuf</tef:nom><tef:prenom>Olivier</tef:prenom><tef:autoriteInterne>intervenant_4</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">112823564</tef:autoriteExterne></tef:rapporteur><tef:rapporteur><tef:nom>Péran</tef:nom><tef:prenom>Patrice</tef:prenom><tef:autoriteInterne>intervenant_5</tef:autoriteInterne><tef:autoriteExterne autoriteSource="Sudoc">083952098</tef:autoriteExterne></tef:rapporteur>
      
      
      
      
      
      
      
      


      <tef:ecoleDoctorale>
       <tef:nom>MATISSE</tef:nom><tef:autoriteInterne>ecoleDoctorale_1</tef:autoriteInterne>
       
       <tef:autoriteExterne autoriteSource="Sudoc">267602553</tef:autoriteExterne>
      </tef:ecoleDoctorale>
      <tef:partenaireRecherche type="laboratoire">
       <tef:nom>
Laboratoire de Traitement du Signal et de l'Image
</tef:nom><tef:autoriteInterne>partenaireRecherche_1</tef:autoriteInterne>
       
       <tef:autoriteExterne autoriteSource="Sudoc">
177793767
</tef:autoriteExterne>
      </tef:partenaireRecherche>
      <tef:oaiSetSpec>ddc:620</tef:oaiSetSpec>
      <tef:oaiSetSpec>ddc:610</tef:oaiSetSpec>

     




     <tef:MADSAuthority authorityID="intervenant_1" type="personal"><tef:personMADS><mads:namePart type="family">Bézy-Wendling</mads:namePart><mads:namePart type="given">Johanne</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="intervenant_2" type="personal"><tef:personMADS><mads:namePart type="family">Noury</mads:namePart><mads:namePart type="given">Fanny</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="intervenant_3" type="personal"><tef:personMADS><mads:namePart type="family">Kuchcinski‎</mads:namePart><mads:namePart type="given">Grégory</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="intervenant_4" type="personal"><tef:personMADS><mads:namePart type="family">Beuf</mads:namePart><mads:namePart type="given">Olivier</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="intervenant_5" type="personal"><tef:personMADS><mads:namePart type="family">Péran</mads:namePart><mads:namePart type="given">Patrice</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="intervenant_6" type="personal"><tef:personMADS><mads:namePart type="family">Flament</mads:namePart><mads:namePart type="given">Julien</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="thesis.degree.grantor_1" type="corporate"><tef:personMADS><mads:namePart>Université de Rennes</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="ecoleDoctorale_1" type="corporate"><tef:personMADS><mads:namePart>MATISSE</mads:namePart></tef:personMADS></tef:MADSAuthority><tef:MADSAuthority authorityID="partenaireRecherche_1" type="corporate"><tef:personMADS><mads:namePart>
Laboratoire de Traitement du Signal et de l'Image
</mads:namePart></tef:personMADS></tef:MADSAuthority></tef:thesisAdmin>
				</mets:xmlData>
			</mets:mdWrap>
		</mets:techMD><mets:techMD ID="file_1"><mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_tech_fichier"><mets:xmlData><tef:meta_fichier>
     <tef:encodage>ASCII</tef:encodage>
     <tef:formatFichier>PDF</tef:formatFichier>
     
     
     
     <tef:taille>7700376</tef:taille>
    </tef:meta_fichier></mets:xmlData></mets:mdWrap></mets:techMD>

		
		
		
		<mets:rightsMD ID="dr_expr_thesard">
			<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_droits_auteur_these">
				<mets:xmlData>
					<metsRights:RightsDeclarationMD>
						<metsRights:Context CONTEXTCLASS="GENERAL PUBLIC">
							<metsRights:Permissions DISCOVER="true" COPY="true" DISPLAY="true" DUPLICATE="true" PRINT="true" MODIFY="false" DELETE="false"/>
						</metsRights:Context>
					</metsRights:RightsDeclarationMD>
				</mets:xmlData>
			</mets:mdWrap>
		</mets:rightsMD>
		
		<mets:rightsMD ID="dr_expr_univ">
			<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_droits_etablissement_these">
				<mets:xmlData>
					<metsRights:RightsDeclarationMD>
						<metsRights:Context CONTEXTCLASS="GENERAL PUBLIC">
							<metsRights:Permissions DISCOVER="true" COPY="true" DISPLAY="true" DUPLICATE="true" PRINT="true" MODIFY="false" DELETE="false"/>
						</metsRights:Context>
					</metsRights:RightsDeclarationMD>
				</mets:xmlData>
			</mets:mdWrap>
		</mets:rightsMD>
		
		<mets:rightsMD ID="dr_version">
			<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_droits_version">
				<mets:xmlData>
					<metsRights:RightsDeclarationMD>
						<metsRights:Context CONTEXTCLASS="GENERAL PUBLIC">
							<metsRights:Permissions DISCOVER="true" COPY="true" DISPLAY="true" DUPLICATE="true" PRINT="true" MODIFY="false" DELETE="false"/>
						</metsRights:Context>
					</metsRights:RightsDeclarationMD>
				</mets:xmlData>
			</mets:mdWrap>
		</mets:rightsMD>
	</mets:amdSec>
	
	<mets:fileSec>
  <mets:fileGrp ID="FGrID1" USE="archive"><mets:file ID="FID1" ADMID="file_1" MIMETYPE="application/pdf" USE="maitre"><mets:FLocat LOCTYPE="URL" xlink:href="https://ged.univ-rennes1.fr/nuxeo/site/esupversions/588cd641-b517-4c8f-b0ee-fb68eb25a5a1"/></mets:file></mets:fileGrp>
 </mets:fileSec>

	<mets:structMap TYPE="logical">
		<mets:div TYPE="THESE" DMDID="desc_expr" ADMID="dr_expr_thesard dr_expr_univ admin_expr" CONTENTIDS="http://ori-oai-search.univ-rennes1.fr/uid/rennes1-ori-wf-1-21858/oeuvre">
			<mets:div TYPE="VERSION_COMPLETE" ADMID="dr_version" CONTENTIDS="http://ori-oai-search.univ-rennes1.fr/uid/rennes1-ori-wf-1-21858/oeuvre/version">
				<mets:div TYPE="EDITION" DMDID="desc_edition" CONTENTIDS="http://ori-oai-search.univ-rennes1.fr/uid/rennes1-ori-wf-1-21858/oeuvre/version/edition">
					<mets:fptr FILEID="FGrID1"/>
				</mets:div>
			</mets:div>
		</mets:div>
	</mets:structMap>
</mets:mets>