Titre : Acquisition d'organes et de tissus

Acquisition d'organes et de tissus : Questions médicales fréquentes

Termes MeSH sélectionnés :

Diffusion Tensor Imaging
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"Diagnostic", "headline": "Diagnostic sur Acquisition d'organes et de tissus", "description": "Comment évaluer la nécessité d'une transplantation ?\nQuels tests sont utilisés pour le don d'organes ?\nComment déterminer la compatibilité des donneurs ?\nQuels critères excluent un donneur potentiel ?\nComment évaluer la fonction d'un organe avant le don ?", "url": "https://questionsmedicales.fr/mesh/D009927?mesh_terms=Diffusion+Tensor+Imaging&page=2#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Acquisition d'organes et de tissus", "description": "Quels signes indiquent un besoin d'organe ?\nComment reconnaître une réaction au rejet ?\nQuels symptômes d'infection post-transplantation ?\nQuels signes d'une mauvaise fonction rénale ?\nComment identifier une complication pulmonaire ?", "url": "https://questionsmedicales.fr/mesh/D009927?mesh_terms=Diffusion+Tensor+Imaging&page=2#section-symptômes" }, { "@type": "MedicalWebPage", "name": 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"@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Acquisition d'organes et de tissus", "description": "Quelles sont les complications possibles après une transplantation ?\nComment gérer le rejet aigu ?\nQuels sont les signes d'une infection grave ?\nQuelles complications cardiovasculaires peuvent survenir ?\nComment prévenir les complications à long terme ?", "url": "https://questionsmedicales.fr/mesh/D009927?mesh_terms=Diffusion+Tensor+Imaging&page=2#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Acquisition d'organes et de tissus", "description": "Quels facteurs augmentent le besoin de transplantation ?\nComment l'âge influence-t-il le don d'organes ?\nQuels comportements augmentent les risques de maladies ?\nComment les antécédents familiaux influencent-ils le risque ?\nQuels facteurs socio-économiques influencent le don ?", "url": "https://questionsmedicales.fr/mesh/D009927?mesh_terms=Diffusion+Tensor+Imaging&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment évaluer la nécessité d'une transplantation ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'évaluation inclut des tests médicaux, des antécédents et des examens physiques." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour le don d'organes ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests sanguins, d'imagerie et de compatibilité tissulaire sont effectués." } }, { "@type": "Question", "name": "Comment déterminer la compatibilité des donneurs ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "La compatibilité est évaluée par des tests HLA et des groupes sanguins." } }, { "@type": "Question", "name": "Quels critères excluent un donneur potentiel ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Des maladies infectieuses, des cancers ou des antécédents médicaux graves peuvent exclure." } }, { "@type": "Question", "name": "Comment évaluer la fonction d'un organe avant le don ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de fonction hépatique, rénale ou cardiaque sont réalisés pour évaluer l'organe." } }, { "@type": "Question", "name": "Quels signes indiquent un besoin d'organe ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Fatigue extrême, douleurs, défaillance d'organe et symptômes d'insuffisance." } }, { "@type": "Question", "name": "Comment reconnaître une réaction au rejet ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Symptômes incluent fièvre, douleur, gonflement et dysfonction de l'organe transplanté." } }, { "@type": "Question", "name": "Quels symptômes d'infection post-transplantation ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Fièvre, frissons, rougeur et douleur au site de la transplantation sont fréquents." } }, { "@type": "Question", "name": "Quels signes d'une mauvaise fonction rénale ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oligurie, œdème, hypertension et fatigue peuvent indiquer une défaillance rénale." } }, { "@type": "Question", "name": "Comment identifier une complication pulmonaire ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Toux persistante, essoufflement et douleur thoracique peuvent signaler une complication." } }, { "@type": "Question", "name": "Comment promouvoir le don d'organes ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Sensibilisation, éducation et campagnes d'information encouragent le don d'organes." } }, { "@type": "Question", "name": "Quelles sont les mesures de sécurité pour les donneurs ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Des évaluations médicales rigoureuses et des protocoles de sécurité sont mis en place." } }, { "@type": "Question", "name": "Comment éviter les infections chez les receveurs ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Hygiène rigoureuse, vaccinations et suivi médical régulier aident à prévenir les infections." } }, { "@type": "Question", "name": "Quelles sont les recommandations pour les receveurs ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Suivre les prescriptions, éviter les infections et assister aux rendez-vous médicaux." } }, { "@type": "Question", "name": "Comment sensibiliser à l'importance du don ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Des campagnes médiatiques et des témoignages de receveurs peuvent sensibiliser le public." } }, { "@type": "Question", "name": "Quels traitements sont nécessaires après une transplantation ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Immunosuppresseurs, suivi médical régulier et gestion des effets secondaires sont essentiels." } }, { "@type": "Question", "name": "Comment prévenir le rejet d'organe ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "L'utilisation d'immunosuppresseurs et un suivi régulier aident à prévenir le rejet." } }, { "@type": "Question", "name": "Quels sont les traitements pour les complications ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Les complications peuvent nécessiter des médicaments, des interventions chirurgicales ou des soins intensifs." } }, { "@type": "Question", "name": "Comment gérer les effets secondaires des médicaments ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Un suivi régulier et des ajustements de dosage aident à gérer les effets secondaires." } }, { "@type": "Question", "name": "Quels sont les traitements pour les infections post-transplantation ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Antibiotiques et antiviraux sont souvent utilisés pour traiter les infections." } }, { "@type": "Question", "name": "Quelles sont les complications possibles après une transplantation ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Rejet, infections, complications vasculaires et problèmes de fonction de l'organe transplanté." } }, { "@type": "Question", "name": "Comment gérer le rejet aigu ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Le rejet aigu nécessite souvent des ajustements de médicaments immunosuppresseurs." } }, { "@type": "Question", "name": "Quels sont les signes d'une infection grave ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Fièvre élevée, détérioration rapide de l'état général et symptômes respiratoires sévères." } }, { "@type": "Question", "name": "Quelles complications cardiovasculaires peuvent survenir ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Les receveurs peuvent développer une hypertension, une athérosclérose ou des troubles du rythme." } }, { "@type": "Question", "name": "Comment prévenir les complications à long terme ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Un suivi régulier, une bonne observance des traitements et un mode de vie sain sont cruciaux." } }, { "@type": "Question", "name": "Quels facteurs augmentent le besoin de transplantation ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Maladies chroniques, accidents, infections graves et cancers augmentent le besoin." } }, { "@type": "Question", "name": "Comment l'âge influence-t-il le don d'organes ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "L'âge avancé peut affecter la qualité des organes et la décision de don." } }, { "@type": "Question", "name": "Quels comportements augmentent les risques de maladies ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Tabagisme, alcoolisme, obésité et sédentarité augmentent les risques de maladies nécessitant un don." } }, { "@type": "Question", "name": "Comment les antécédents familiaux influencent-ils le risque ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Des antécédents familiaux de maladies héréditaires peuvent augmenter le risque de défaillance d'organe." } }, { "@type": "Question", "name": "Quels facteurs socio-économiques influencent le don ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "L'accès aux soins, l'éducation et la sensibilisation peuvent influencer les taux de don." } } ] } ] }

Sources (10000 au total)

Diffusion tensor imaging for the differential diagnosis of Parkinsonism by machine learning.

There are currently no specific tests for either idiopathic Parkinson's disease or Parkinson-plus syndromes. The study aimed to investigate the diagnostic performance of features extracted from the wh... The retrospective data yielded 625 participants (average age: 61.4 ± 8.2, men/women: 313/312; healthy controls/idiopathic Parkinson's disease/multiple system atrophy/progressive supranuclear palsy: 21... Diagnoses were accurate for distinguishing idiopathic Parkinson's disease from healthy control and Parkinson-plus syndromes (87.4 ± 2.1% and 82.5 ± 3.9%, respectively). Diagnostic F1 scores varied for... Features extracted from diffusion tensor imaging of the whole brain can provide objective evidence for the diagnosis of healthy control, idiopathic Parkinson's disease, and Parkinson-plus syndromes wi...

Comparative Analysis of the Apparent Diffusion Coefficient and Diffusion Tensor Imaging in the Diagnosis of Prostate Cancer.

The aim of this work was to demonstrate capabilities of diffusion tensor imaging as a diagnostic tool for prostate cancer in comparison with the apparent diffusion coefficient.... 364 patients with suspected prostate cancer underwent multiparametric magnetic resonance imaging including diffusion tensor imaging.... The anatomical structure of the prostate obtained on T2-weighted imaging was compared with the apparent diffusion coefficient and diffusion tensor imaging maps. The rest of the gland (central and peri... Diffusion tensor imaging has the potential to identify prostate cancer with high accuracy and specificity. The combination of standard magnetic resonance imaging and diffusion tensor imaging can signi...

Role of diffusion tensor imaging in stenotic and non-stenotic spinal canal.

Cervical Spondylotic Myelopathy (CSM) is a gradually escalating spinal cord disturbance set in motion by the degenerative narrowing of the vertebral canal. Routine MRI may fail to detect the subtle ea... Sixty-four subjects who met the requirements of the inclusion criteria were incorporated into the investigation. All subjects underwent routine MRI sequences in addition to DTI of the cervical spine r... A noteworthy difference (p<0.05) was seen in the FA parameter and ADC parameter values between the stenotic and non-stenotic groups, with the non-stenotic group having a higher mean FA and a lower ADC... DTI parameters, namely FA and ADC, are sensitive to damage to the white matter and can be used to detect microstructural changes in the cord. However, standardization of the protocol is necessary when...

Intersession Repeatability of Diffusion-Tensor Imaging in the Supraspinatus and the Infraspinatus Muscles of Volunteers.

Quantifying the rotator cuff (RC) muscles' viscoelasticity could provide outcome relevant information in patients with RC tears. MR-elastography requires robust diffusion-tensor imaging (DTI) to accou... To assess the repeatability of DTI parameters in the supraspinatus and infraspinatus muscles and to explore DTI tractography conformity with the muscles' anatomy.... Prospective.... Six healthy volunteers underwent three consecutive shoulder MRI sessions about 10 minutes apart.... 3T/T1-vibe Dixon and Spin echo EPI DTI (12 gradient encoding directions, b-values 500 and 800 sec/mm... Supraspinatus and infraspinatus muscles were segmented on the T1-vibe Dixon sequence. DTI image quality was assessed using a quantitative threshold based on the signal-to-noise ratio (SNR). The eigenv... DTI parameters within-subject intersession repeatability was assessed with Bland-Altman analysis and the coefficient of variation (CV). Repeatability was considered good for CV < 10%.... The SNR between diffusion-weighted and non-diffusion-weighted images was greater than 3, which aligns with standards for estimating DTI parameters. The FA showed the lowest mean bias (-0.007; 95% conf... DTI of the supraspinatus and infraspinatus muscles achieved an adequate SNR, allowing the measurement of the DTI metrics with good repeatability, and thus can be used for optimizing stiffness estimati... 2 TECHNICAL EFFICACY: Stage 2....