Titre : Microscopie à sonde à balayage

Microscopie à sonde à balayage : Questions médicales fréquentes

Termes MeSH sélectionnés :

Randomized Controlled Trials as Topic
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sonde à balayage", "description": "La microscopie à sonde à balayage aide-t-elle au traitement ?\nPeut-elle être utilisée pour le suivi des traitements ?\nEst-elle utilisée en recherche thérapeutique ?\nPeut-elle aider à la régénération tissulaire ?\nEst-elle utilisée pour évaluer l'efficacité des médicaments ?", "url": "https://questionsmedicales.fr/mesh/D020527?mesh_terms=Randomized+Controlled+Trials+as+Topic&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Microscopie à sonde à balayage", "description": "Quelles complications peuvent survenir lors de l'utilisation ?\nY a-t-il des risques pour les échantillons ?\nPeut-elle entraîner des erreurs de diagnostic ?\nY a-t-il des complications liées à l'équipement ?\nEst-elle coûteuse à mettre en œuvre ?", "url": "https://questionsmedicales.fr/mesh/D020527?mesh_terms=Randomized+Controlled+Trials+as+Topic&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Microscopie à sonde à balayage", "description": "Quels facteurs influencent la qualité des images ?\nY a-t-il des risques liés à l'utilisation de la sonde ?\nQuels sont les facteurs environnementaux à considérer ?\nLa formation des opérateurs est-elle importante ?\nLes contaminants peuvent-ils affecter les résultats ?", "url": "https://questionsmedicales.fr/mesh/D020527?mesh_terms=Randomized+Controlled+Trials+as+Topic&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment la microscopie à sonde à balayage est-elle utilisée en diagnostic ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Elle permet d'observer des structures à l'échelle nanométrique, utile pour diagnostiquer des maladies." } }, { "@type": "Question", "name": "Quels types d'échantillons peuvent être analysés ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des échantillons biologiques, matériaux, et semi-conducteurs peuvent être analysés." } }, { "@type": "Question", "name": "Quels sont les avantages de cette technique ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Elle offre une résolution élevée et permet d'étudier des surfaces complexes." } }, { "@type": "Question", "name": "Peut-on détecter des anomalies cellulaires ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle permet de visualiser des anomalies à l'échelle cellulaire et subcellulaire." } }, { "@type": "Question", "name": "Est-elle utilisée pour des diagnostics précoces ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle peut aider à détecter des pathologies à un stade précoce grâce à sa précision." } }, { "@type": "Question", "name": "Quels symptômes peuvent être observés avec cette technique ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "La microscopie ne détecte pas de symptômes, mais aide à identifier des anomalies." } }, { "@type": "Question", "name": "Peut-elle révéler des infections ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Indirectement, en montrant des changements cellulaires associés à des infections." } }, { "@type": "Question", "name": "Est-elle utile pour étudier des tumeurs ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle permet d'analyser la morphologie des cellules tumorales." } }, { "@type": "Question", "name": "Peut-on observer des inflammations ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle peut aider à visualiser des signes d'inflammation au niveau cellulaire." } }, { "@type": "Question", "name": "Quels types de changements cellulaires sont visibles ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des changements morphologiques, comme la taille et la forme des cellules, peuvent être observés." } }, { "@type": "Question", "name": "Comment la microscopie aide-t-elle à la prévention des maladies ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Elle permet d'identifier des biomarqueurs précoces de maladies, facilitant la prévention." } }, { "@type": "Question", "name": "Peut-elle contribuer à la recherche sur les vaccins ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle aide à étudier la réponse immunitaire et l'efficacité des vaccins." } }, { "@type": "Question", "name": "Est-elle utilisée pour surveiller l'environnement ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle peut analyser des échantillons environnementaux pour détecter des contaminants." } }, { "@type": "Question", "name": "Peut-elle aider à prévenir les infections nosocomiales ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, en identifiant des agents pathogènes dans les milieux hospitaliers." } }, { "@type": "Question", "name": "Est-elle utile pour la sécurité alimentaire ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle permet d'analyser des échantillons alimentaires pour détecter des contaminants." } }, { "@type": "Question", "name": "La microscopie à sonde à balayage aide-t-elle au traitement ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Indirectement, en fournissant des informations pour guider les traitements." } }, { "@type": "Question", "name": "Peut-elle être utilisée pour le suivi des traitements ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle permet de surveiller les effets des traitements au niveau cellulaire." } }, { "@type": "Question", "name": "Est-elle utilisée en recherche thérapeutique ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle est essentielle pour développer de nouvelles thérapies et médicaments." } }, { "@type": "Question", "name": "Peut-elle aider à la régénération tissulaire ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, en étudiant les cellules souches et leur comportement dans les tissus." } }, { "@type": "Question", "name": "Est-elle utilisée pour évaluer l'efficacité des médicaments ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle permet d'analyser les interactions médicamenteuses au niveau cellulaire." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir lors de l'utilisation ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des artefacts d'image peuvent se produire, affectant l'interprétation des résultats." } }, { "@type": "Question", "name": "Y a-t-il des risques pour les échantillons ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains échantillons peuvent être endommagés par la sonde lors de l'analyse." } }, { "@type": "Question", "name": "Peut-elle entraîner des erreurs de diagnostic ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des erreurs peuvent survenir si les artefacts ne sont pas correctement identifiés." } }, { "@type": "Question", "name": "Y a-t-il des complications liées à l'équipement ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Des pannes d'équipement peuvent survenir, nécessitant un entretien régulier." } }, { "@type": "Question", "name": "Est-elle coûteuse à mettre en œuvre ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'équipement et la maintenance peuvent représenter un coût élevé." } }, { "@type": "Question", "name": "Quels facteurs influencent la qualité des images ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "La préparation des échantillons et les conditions environnementales sont cruciales." } }, { "@type": "Question", "name": "Y a-t-il des risques liés à l'utilisation de la sonde ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une manipulation incorrecte peut endommager la sonde et les échantillons." } }, { "@type": "Question", "name": "Quels sont les facteurs environnementaux à considérer ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "La température, l'humidité et les vibrations peuvent affecter les résultats." } }, { "@type": "Question", "name": "La formation des opérateurs est-elle importante ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une formation adéquate est essentielle pour éviter des erreurs d'interprétation." } }, { "@type": "Question", "name": "Les contaminants peuvent-ils affecter les résultats ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la présence de contaminants peut altérer les images et les analyses." } } ] } ] }

Sources (10000 au total)

PGT-A: The biology and hidden failures of randomized control trials.

Preimplantation Genetic Testing - Aneuploidy (PGT-A) for embryo selection has undergone significant advancements in the last 2 decades and yet many studies still fail to demonstrate any clinical benef... All suitable blastocysts were biopsied and analyzed for chromosome copy number. Outcomes (positive beta hCG, implantation, ongoing pregnancy, and live birth rates) for Eu-S were compared to Mo-S using... Compared to Eu-S embryos, Mo-S embryos resulted in significant reduction of outcomes for positive beta hCG (p = 0.0005), implantation (p = 0.0008), ongoing pregnancy (p = 0.0046), livebirth (p = 0.011... Embryo chromosome status is central to improved embryo transfer outcomes and sole reliance on current morphology-based selection practices, without Eu-S, will always compromise outcomes. Often overloo...

Statistical Power of Randomized Controlled Trials in Trauma Surgery.

Our purpose was to conduct a bibliometric study investigating the prevalence of underpowered randomized controlled trials (RCTs) in trauma surgery.... A medical librarian conducted a search of RCTs in trauma published from 2000 to 2021. Data extracted included study type, sample size calculation, and power analyses. Post hoc calculations were perfor... In total 187 RCTs from multiple continents and 60 journals were examined. A total of 133 (71%) were found to have "positive" findings consistent with their hypothesis. When evaluating their methods, 5... A concerningly large proportion of recently published RCTs in trauma surgery do not report a priori sample size calculations, do not meet enrollment targets, and are not adequately powered to detect e...

Assessing transparency practices in dental randomized controlled trials.

To evaluate transparency practices in randomized controlled trials (RCTs) in dentistry.... This meta-research study included RCTs in dentistry regardless of topic, methods, or level of detail reported. Only studies in English were considered. We searched PubMed for RCTs in dentistry publish... A total of 844 RCTs were included. Only 12.86% of studies reported any information about data and code sharing. Protocol registration was reported for 50.36% of RCTs. Conflict of interest (83.41%) and... Considering the importance of RCTs for evidence-based dentistry, it is crucial that everyone who participates in the scientific production and dissemination process actively and consistently promotes ...

The Fragility Index of randomized controlled trials in pediatric anesthesiology.

The P value is a widely used measure of statistical importance but has many drawbacks and limitations, one being that it does not reflect the robustness of the results of a clinical trial. The Fragili... We conducted a comprehensive systematic search of high-impact anesthesia, surgical, and medical journals from the last 25 years for trials comparing an intervention between two groups with a statistic... The median [interquartile range] FI was 3 [1-7] and correlated positively with the number of participants (r... The FI of published trials in pediatric anesthesiology is similarly low as in other medical specialties. Larger trials with more events and P values ≤ 0.01 were associated with a higher FI....

Reproducing Statistics Performed in Published Randomized Controlled Trials.

Randomized controlled trials (RCT) represent evidence at the lowest potential risk for bias. Clinicians in all specialties depend upon RCTs to guide patient care. Issues such as statistical discordanc... PubMed was searched using "randomized controlled trial." Studies were selected using a random number generator. Studies were included if the primary outcome could be reproduced using the data and stat... Overall, 572 RCTs were selected involving six specialties. Of these, 45% were positive (p<0.05) studies. Eleven (2%) published results that differed from the reproduction analysis and crossed the p=0.... Less than 5% of published RCTs reported a discordant p-value that crossed the "p=0.05" threshold. Although the occurrence is uncommon, the existence of even one RCT publishing nonreproducible results ...