Titre : Gaine de myéline

Gaine de myéline : Questions médicales fréquentes

Termes MeSH sélectionnés :

Diffusion Tensor Imaging
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à la démyélinisation ?", "url": "https://questionsmedicales.fr/mesh/D009186?mesh_terms=Diffusion+Tensor+Imaging&page=996#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Gaine de myéline", "description": "Quels sont les symptômes d'une démyélinisation ?\nLa douleur est-elle un symptôme courant ?\nComment la démyélinisation affecte-t-elle la coordination ?\nLes troubles cognitifs sont-ils liés à la démyélinisation ?\nLes symptômes varient-ils d'une personne à l'autre ?", "url": "https://questionsmedicales.fr/mesh/D009186?mesh_terms=Diffusion+Tensor+Imaging&page=996#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Gaine de myéline", "description": "Peut-on prévenir la démyélinisation ?\nL'alimentation joue-t-elle un rôle ?\nLe stress influence-t-il la démyélinisation ?\nL'exercice physique est-il recommandé ?\nLes vaccinations sont-elles importantes ?", "url": "https://questionsmedicales.fr/mesh/D009186?mesh_terms=Diffusion+Tensor+Imaging&page=996#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Gaine de myéline", "description": "Quels traitements existent pour la démyélinisation ?\nLa rééducation est-elle utile ?\nLes corticostéroïdes sont-ils efficaces ?\nY a-t-il des traitements expérimentaux ?\nLes traitements sont-ils curatifs ?", "url": "https://questionsmedicales.fr/mesh/D009186?mesh_terms=Diffusion+Tensor+Imaging&page=996#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Gaine de myéline", "description": "Quelles complications peuvent survenir ?\nLa dépression est-elle une complication fréquente ?\nLes troubles de la vision peuvent-ils s'aggraver ?\nY a-t-il un risque accru de handicap ?\nLes complications sont-elles réversibles ?", "url": "https://questionsmedicales.fr/mesh/D009186?mesh_terms=Diffusion+Tensor+Imaging&page=996#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Gaine de myéline", "description": "Quels sont les principaux facteurs de risque ?\nLe sexe influence-t-il le risque ?\nLe tabagisme est-il un facteur de risque ?\nL'exposition à des toxines joue-t-elle un rôle ?\nLe climat a-t-il un impact sur le risque ?", "url": "https://questionsmedicales.fr/mesh/D009186?mesh_terms=Diffusion+Tensor+Imaging&page=996#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une démyélinisation ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un IRM peut révéler des lésions de myéline dans le système nerveux central." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour évaluer la myéline ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les potentiels évoqués et les tests neurologiques aident à évaluer la fonction myélinique." } }, { "@type": "Question", "name": "Quels signes indiquent une atteinte de la myéline ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes comme des troubles de la coordination ou des engourdissements peuvent indiquer une atteinte." } }, { "@type": "Question", "name": "La biopsie nerveuse est-elle nécessaire ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Rarement, mais elle peut être utilisée pour confirmer des maladies spécifiques de la myéline." } }, { "@type": "Question", "name": "Quels marqueurs biologiques sont associés à la démyélinisation ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des niveaux élevés d'anticorps spécifiques peuvent indiquer une démyélinisation." } }, { "@type": "Question", "name": "Quels sont les symptômes d'une démyélinisation ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent fatigue, troubles de la vision, et faiblesse musculaire." } }, { "@type": "Question", "name": "La douleur est-elle un symptôme courant ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des douleurs neuropathiques peuvent survenir en raison de la démyélinisation." } }, { "@type": "Question", "name": "Comment la démyélinisation affecte-t-elle la coordination ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Elle peut provoquer des troubles de l'équilibre et des mouvements maladroits." } }, { "@type": "Question", "name": "Les troubles cognitifs sont-ils liés à la démyélinisation ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des problèmes de mémoire et de concentration peuvent survenir." } }, { "@type": "Question", "name": "Les symptômes varient-ils d'une personne à l'autre ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'intensité et le type de symptômes peuvent varier considérablement." } }, { "@type": "Question", "name": "Peut-on prévenir la démyélinisation ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Il n'existe pas de méthode garantie, mais un mode de vie sain peut réduire les risques." } }, { "@type": "Question", "name": "L'alimentation joue-t-elle un rôle ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation riche en oméga-3 et en antioxydants peut être bénéfique." } }, { "@type": "Question", "name": "Le stress influence-t-il la démyélinisation ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress peut aggraver les symptômes et déclencher des poussées." } }, { "@type": "Question", "name": "L'exercice physique est-il recommandé ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'exercice régulier peut améliorer la santé neurologique et physique." } }, { "@type": "Question", "name": "Les vaccinations sont-elles importantes ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Certaines vaccinations peuvent aider à prévenir des infections qui aggravent la démyélinisation." } }, { "@type": "Question", "name": "Quels traitements existent pour la démyélinisation ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements incluent des médicaments immunomodulateurs et des thérapies symptomatiques." } }, { "@type": "Question", "name": "La rééducation est-elle utile ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la rééducation physique peut aider à améliorer la fonction et la mobilité." } }, { "@type": "Question", "name": "Les corticostéroïdes sont-ils efficaces ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Ils peuvent réduire l'inflammation et accélérer la récupération lors des poussées." } }, { "@type": "Question", "name": "Y a-t-il des traitements expérimentaux ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des thérapies géniques et des traitements à base de cellules souches sont en cours d'étude." } }, { "@type": "Question", "name": "Les traitements sont-ils curatifs ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Non, ils visent principalement à gérer les symptômes et à ralentir la progression." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications incluent des infections, des troubles de la mobilité et des douleurs chroniques." } }, { "@type": "Question", "name": "La dépression est-elle une complication fréquente ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la dépression est courante chez les personnes atteintes de démyélinisation." } }, { "@type": "Question", "name": "Les troubles de la vision peuvent-ils s'aggraver ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des troubles visuels peuvent s'aggraver avec la progression de la maladie." } }, { "@type": "Question", "name": "Y a-t-il un risque accru de handicap ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la démyélinisation peut entraîner un handicap physique ou cognitif à long terme." } }, { "@type": "Question", "name": "Les complications sont-elles réversibles ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être gérées, mais beaucoup ne sont pas réversibles." } }, { "@type": "Question", "name": "Quels sont les principaux facteurs de risque ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent des antécédents familiaux, l'âge et des infections virales." } }, { "@type": "Question", "name": "Le sexe influence-t-il le risque ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les femmes sont plus susceptibles de développer des maladies démyélinisantes." } }, { "@type": "Question", "name": "Le tabagisme est-il un facteur de risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le tabagisme est associé à un risque accru de démyélinisation." } }, { "@type": "Question", "name": "L'exposition à des toxines joue-t-elle un rôle ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'exposition à certaines toxines environnementales peut augmenter le risque." } }, { "@type": "Question", "name": "Le climat a-t-il un impact sur le risque ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des études montrent que les personnes vivant dans des climats froids ont un risque plus élevé." } } ] } ] }

Sources (10000 au total)

High efficiency free-breathing 3D thoracic aorta vessel wall imaging using self-gating image reconstruction.

To improve the scan efficiency of thoracic aorta vessel wall imaging using a self-gating (SG)-based motion correction scheme.... A slab-selective variable-flip-angle 3D turbo spin-echo (SPACE) sequence was modified to acquire SG signals and imaging data. Cartesian sampling with a tiny golden-step spiral profile ordering was use... Results showed that the proposed method achieved image quality comparable to that of conventional diaphragmatic navigator-gated acquisition with an average scan time of 4 min. The sharpness of the ves...

Flow void analysis using different thresholding methods on a choriocapillaris OCTA image complemented with a structural en-face image.

To investigate the flow characteristics using different thresholding methods on a choriocapillaris optical coherence tomography angiography (OCTA) image complemented with a structural en-face image.... The 42 choriocapillaris OCTA images from healthy subjects were obtained with swept-source OCTA device (Zeiss Plex-Elite) and the 3 x 3 mm area OCTA images were processed with Image J. Using a raw chor... Mean flow void area, number and size were different according to the different binarization method both in raw and adjusted images (all, P < 0.001). The mean flow void area analyzed with global thresh... Flow void features varied according to the different binarization methods but showed good correlation. The flow void characteristics according to the different binarization methods should be considere...

Multi-modality imaging of high-intensity plaques on non-contrast T1-weighted magnetic resonance imaging: a case report.

Non-contrast T1-weighted imaging (T1WI) with cardiac magnetic resonance enables to evaluate the intensity of coronary plaque. Plaque-to-myocardial signal intensity ratio (PMR) has been shown to associ... Case 1 exhibited one lesion with high PMR (2.79) at the proximal segment of left anterior descending (LAD) artery. OCT imaging did not identify any obvious intra-luminal thrombus but the presence of l... These cases showed the possible relationship of T1WI-derived PMR with the degree of lipidic plaque components....

Nonenhanced Photon Counting CT of the Head : Impact of the keV Level, Iterative Reconstruction and Calvaria on Image Quality in Monoenergetic Images.

Nonenhanced computed tomography (CT) of the head is among the most commonly performed CT examinations. The spectral information acquired by photon counting CT (PCCT) allows generation of virtual monoe... A total of 51 PCCT (NAEOTOM Alpha, Siemens Healthineers, Erlangen, Germany) of the head were retrospectively analyzed. In a quantitative analysis, gray and white matter ROIs were evaluated in differen... In most ROIs, signal and noise varied significantly between keV levels (p < 0.0001). The CNR had a focal maximum at 66 keV and an absolute maximum at higher keV, slightly differently located depending... In nonenhanced PCCT of the head the selected keV level of the VMI and the QIR level have a crucial influence on image quality in VMI. The 60 keV and 66 keV VMI with high QIR level provided optimal sub...