Academic literature on the topic 'Sonde IRM'
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Journal articles on the topic "Sonde IRM"
Lefevre, A., F. Cornud, and P. Camparo. "Biopsies de prostate dirigées par IRM avec une sonde de très haute fréquence (29 MhZ) : une alternative à la fusion d’images." Progrès en Urologie 29, no. 13 (November 2019): 669–70. http://dx.doi.org/10.1016/j.purol.2019.08.090.
Full textM., Tangara, Traore O., Sy S., Toure A., Kongoulba M., Yattara H., Sidibe D.M, et al. "LA FIBROSE RETRO-PERITONEALE: A PROPOS DE 10 CAS." International Journal of Advanced Research 12, no. 07 (July 31, 2024): 486–92. http://dx.doi.org/10.21474/ijar01/19078.
Full textNdiaye, M., M. Jalloh, M. Ndoye, ST Faye, SCN Kouka, N. Seck Ndour, MM Mbodji, et al. "C63: Biopsie échoguidée de la prostate : Indication, morbidité et résultats à l'Hôpital Général Idrissa Pouye." African Journal of Oncology 2, no. 1 Supplement (March 1, 2022): S27—S28. http://dx.doi.org/10.54266/ajo.2.1s.c63.ftgc8929.
Full textBurschel, Peter, and Hole Rößler. "Zum Thema." Zeitschrift für Ideengeschichte 14, no. 3 (2020): 4. http://dx.doi.org/10.17104/1863-8937-2020-3-4.
Full textCarvalho, Maicon W. M. de, Eduardo R. Hickel, Bruno Bertoldi, Gustavo C. Knabben, and Yales R. de Novaes. "Design of a smart LED lamp to monitor insect populations in an integrated pest management approach." Revista Brasileira de Engenharia Agrícola e Ambiental 25, no. 4 (April 2021): 270–76. http://dx.doi.org/10.1590/1807-1929/agriambi.v25n4p270-276.
Full textPerez, Hilda A., and Mercedes De La Rosa. "El inmunoensayo enzimático (ELISA) en el diagnóstico serológico de Plasmodium vivax." Revista do Instituto de Medicina Tropical de São Paulo 32, no. 3 (June 1990): 189–95. http://dx.doi.org/10.1590/s0036-46651990000300008.
Full textKami, Kanisius, and Gede Artawan. "Olah Kata Sosio-Kultural." Indo-MathEdu Intellectuals Journal 5, no. 2 (March 9, 2024): 1408–16. http://dx.doi.org/10.54373/imeij.v5i2.899.
Full textMeschino, Gustavo Soares Paes Giugliano, Eduardo Zanetti Bergamaschi, Felipe Lopes Grillo Grillo, Fernando Meyer, Suelen Miná Valadares de Almeida Silva, Julia Letícia De Bortolo, Christiano Machado Filho, and Julia Rosembach Bruscato. "Análise e comparação entre Urolift® e HoLEP dos dados intraoperatórios e pós-operatórios em pacientes com Hiperplasia Prostática Benigna." Brazilian Journal of Health Review 7, no. 9 (November 11, 2024): e74466. http://dx.doi.org/10.34119/bjhrv7n9-080.
Full textSilva, Belisa Maria Santos da, Maithê de Carvalho e. Lemos Goulart, Fernanda Garcia Bezerra Góes, and Fernanda Maria Vieira Pereira Ávila. "Fatores associados ao desfecho dos pacientes adultos hospitalizados na Unidade de Terapia Intensiva." CONTRIBUCIONES A LAS CIENCIAS SOCIALES 17, no. 8 (August 13, 2024): e9381. http://dx.doi.org/10.55905/revconv.17n.8-180.
Full textHevia, Jetzabe, and Arianna Casique. "Anaplasmosis simulando enfermedad linfoproliferativa: A propósito de un caso." Revista GICOS 9, no. 2 (2024): 248–59. http://dx.doi.org/10.53766/gicos/2024.09.02.19.
Full textDissertations / Theses on the topic "Sonde IRM"
Zimmeter, Katharina. "Développement de sondes IRM à base de peptides ou thiosemicarbazones pour la détection de cuivre(II) dans le milieu physiologique." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF046.
Full textExchangeable copper, which is primarily bound to human serum albumin (HSA) in the blood, is a potential biomarker for diseases such as Wilson's and Alzheimer's. To date, there is no specific method for its detection in vivo. This thesis presents progress in the design of CuII-responsive MRI (magnetic resonance imaging) probes through two approaches: q-based and τR-based contrast agents (CAs), each containing a gadolinium complex and a CuII-specific ligand. One part of the work is dedicated to the development of ligands adapted to these two approaches, with sufficient CuII-affinity and selectivity: derivatives of the peptidic ATCUN motif for q-based probes and α-pyridyl thiosemicarbazones for τR-based probes. The other part focuses on their incorporation into MRI CAs and their characterization. The probes studied proved the principle of both approaches, although optimizations are still needed. An increase in relaxivity of nearly 400% was observed for the q-based CA, DO3A-pyrGH, in the presence of CuII, and a small but notable increase for τR-type probes in the simultaneous presence of CuII and HSA
Noury, Fanny. "Etude in vivo de la dégénérescence discale par IRM à 9,4 T : application à la validation de méthodes de réparation discale chez le lapin." Phd thesis, Université d'Orléans, 2008. http://tel.archives-ouvertes.fr/tel-00347842.
Full textIl est maintenant largement admis que la dégénérescence du disque intervertébral (DIV) est la principale cause de lombalgie. Cette dégénérescence est un processus complexe caractérisé par des changements biochimiques et structuraux intervenant dans les différents tissus du DIV. Aujourd'hui, seuls des traitements médicaux symptomatiques de la lombalgie sont disponibles et il n'existe pas de traitement spécifique de la dégénérescence discale.
L'imagerie par résonance magnétique (IRM) est une technique reconnue comme un outil non invasif et totalement atraumatique de diagnostic chez l'homme. L'IRM permet de caractériser la morphologie et la physiologie d'un être vivant à partir des modifications de l'état de l'eau dans ses tissus. De part la composition du DIV (principalement de l'eau) l'IRM s'avère être particulièrement adaptée à l'étude du DIV sain ou dégénératif, ainsi qu'à sa régénération dans le cadre de l'évaluation de l'efficacité d'un traitement.
Les objectifs de ce projet ont d'abord été de développer un protocole d'IRM in vivo du DIV chez le lapin, capable de différencier des DIV sains et pathologiques et de mettre en évidence différents stades de dégénérescence discale. Ce protocole a ensuite permis d'évaluer l'efficacité de nouvelles techniques de réparation discale développées par la société Abbott Spine SA.
En parallèle de ce travail chez le lapin, l'IRM in vivo du DIV de souris a été développée, dans le but d'utiliser des modèles transgéniques de pathologies articulaires et d'étudier leur impact sur le DIV.
Petrusca, Lorena Mihaela. "Validation d’une nouvelle génération de sondes HIFU en utilisant la thermométrie IRM." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10345.
Full textThe main objective of the project concerns the study of new HIFU transducers for therapy using MRI guidance. The first sub-project aims the characterization of a HIFU probe for the treatment of the varices and the optimization of the shooting parameters according to the vein depth in the tissue. Acoustic measurements with a hydrophone were carried out in order to confirm the creation of a focalization line. An ex-vivo study using human excised veins was realized using high resolution MRI temperature control in order measure efficiency and security parameters. The second part is a study of a sector switching probe for prostate cancer treatment. The method used by Ablatherm was compared with the sector switching method, by alternating the two sectors of the probe. Results show that the lesion shape and the dimensions are the same for the two methods, but the time saving is 20% for the sector switching probe. A dynamic focalization probe for the prostate cancer treatment was studied for the last experimental part. In vitro and in vivo validation was carried out. Focal points at several distances (between 32 mm and 69 mm with respect to the probe) were obtained and sequences describing lines, splits and volumes were tested. The temperature and thermal dose maps show that the sonication strategy is adequate for inducing a homogenous lethal dose of the desired form. A treatment better adapted to the anatomy of each patient can be performed with this technique. The MRI allowed us to measure in a non-invasive manner and in real time the temperature within tissues subject to ultrasonic shooting and to visualize both the ablated volume and the adjacent tissues
Petrusca, Lorena Mihaela. "Validation d’une nouvelle génération de sondes HIFU en utilisant la thermométrie IRM." Electronic Thesis or Diss., Lyon 1, 2009. http://www.theses.fr/2009LYO10345.
Full textThe main objective of the project concerns the study of new HIFU transducers for therapy using MRI guidance. The first sub-project aims the characterization of a HIFU probe for the treatment of the varices and the optimization of the shooting parameters according to the vein depth in the tissue. Acoustic measurements with a hydrophone were carried out in order to confirm the creation of a focalization line. An ex-vivo study using human excised veins was realized using high resolution MRI temperature control in order measure efficiency and security parameters. The second part is a study of a sector switching probe for prostate cancer treatment. The method used by Ablatherm was compared with the sector switching method, by alternating the two sectors of the probe. Results show that the lesion shape and the dimensions are the same for the two methods, but the time saving is 20% for the sector switching probe. A dynamic focalization probe for the prostate cancer treatment was studied for the last experimental part. In vitro and in vivo validation was carried out. Focal points at several distances (between 32 mm and 69 mm with respect to the probe) were obtained and sequences describing lines, splits and volumes were tested. The temperature and thermal dose maps show that the sonication strategy is adequate for inducing a homogenous lethal dose of the desired form. A treatment better adapted to the anatomy of each patient can be performed with this technique. The MRI allowed us to measure in a non-invasive manner and in real time the temperature within tissues subject to ultrasonic shooting and to visualize both the ablated volume and the adjacent tissues
Bridot, Jean-Luc. "Nanohybrides à coeur d'Oxyde de gadolinium pour le développement de sondes IRM multimodales." Lyon 1, 2007. http://www.theses.fr/2007LYO10290.
Full textDesbrée, Aurélie. "Nouvelle approche multimodale et quantitative pour les études in vivo chez le petit animal : couplage de la β-MicroProbe aux techniques magnétiques et développement de fantômes de rat et de souris voxelisés." Paris 7, 2005. https://tel.archives-ouvertes.fr/tel-00115911.
Full textBosco, Lionel. "Développement de sondes radicalaires intelligentes pour le diagnostic par IRM réhaussée par l'effet Overhauser." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4756/document.
Full textThis work promotes two strategies for the development of new contrast agents for the diagnosis by Overhauser enhanced MRI. Two approaches have therefore been addressed.The first approach is devoted to the development of a nitroxide-type spin label, which is capable to change its EPR (Electron Paramagnetic Resonance) signature upon a non-radical enzymatic activity. This modification, due to a conformational change, allowed us to perform a selective microwave irradiation of the probe released by proteolysis. This feature was applied to Overhauser enhanced MRI and of the image after enzymatic hydrolysis of 1200% in vitro has been obtained. Due to technical hindrances, a contrast enhancement of 600% has been obtained in vivo, while nowadays, the most common clinical contrast agent, based on GdIII complex, improve image contrast around a value of 50%.The second topic deals with the synthesies and the physico-chemical study of alkoxyamines, as nitroxide precursors, for the diagnosis by MRI enhanced by the Overhauser effect. The key point of this approach is based on the activation of these molecules to quickly release the nitroxide in situ. Encouraged by the results of chemical monoactivation, we performed the double chemical activation of these new alkoxyamines to drastically reduce the half-life time of one of them to obtain values compatible with diagnostic applications. A selective pseudo-peptide of chymotrypsin has also been grafted, which allowed us to achieve an alkoxyamine model that will validate our concept of diagnosis
Bosco, Lionel. "Développement de sondes radicalaires intelligentes pour le diagnostic par IRM réhaussée par l'effet Overhauser." Electronic Thesis or Diss., Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4756.
Full textThis work promotes two strategies for the development of new contrast agents for the diagnosis by Overhauser enhanced MRI. Two approaches have therefore been addressed.The first approach is devoted to the development of a nitroxide-type spin label, which is capable to change its EPR (Electron Paramagnetic Resonance) signature upon a non-radical enzymatic activity. This modification, due to a conformational change, allowed us to perform a selective microwave irradiation of the probe released by proteolysis. This feature was applied to Overhauser enhanced MRI and of the image after enzymatic hydrolysis of 1200% in vitro has been obtained. Due to technical hindrances, a contrast enhancement of 600% has been obtained in vivo, while nowadays, the most common clinical contrast agent, based on GdIII complex, improve image contrast around a value of 50%.The second topic deals with the synthesies and the physico-chemical study of alkoxyamines, as nitroxide precursors, for the diagnosis by MRI enhanced by the Overhauser effect. The key point of this approach is based on the activation of these molecules to quickly release the nitroxide in situ. Encouraged by the results of chemical monoactivation, we performed the double chemical activation of these new alkoxyamines to drastically reduce the half-life time of one of them to obtain values compatible with diagnostic applications. A selective pseudo-peptide of chymotrypsin has also been grafted, which allowed us to achieve an alkoxyamine model that will validate our concept of diagnosis
Desbrée, Aurélie. "Nouvelle approche multimodale et quantitative pour les études in vivo chez le petit animal : couplage de la $\beta$-MicroProbe aux techniques magnétiques etdéveloppement de fantômes de rat et de souris voxelisés." Phd thesis, Université Paris-Diderot - Paris VII, 2005. http://tel.archives-ouvertes.fr/tel-00115911.
Full textd'étudier ces modèles au cours du temps a stimulé le développement d'instruments dédiés aux études in vivo chez le petit animal. Pour aller plus loin dans la compréhension des mécanismes physiopathologiques, le grand défi actuel est de pouvoir coupler simultanément
plusieurs de ces méthodes. Dans ce cadre, la combinaison des techniques magnétiques et radioactives reste un challenge des plus intéressants mais aussi des plus délicats à réaliser techniquement. C'est pourquoi nous proposons de coupler les techniques magnétiques à la sonde radiosensible b-MicroProbe développée dans le groupe IPB et qui s'est révélée être une alternative aux mesures TEP. Dans ce contexte, le travail de thèse a consisté à étudier la faisabilité de ce couplage d'un point de vue physique, par simulation et par des caractérisations expérimentales. Puis, la mise en place d'un protocole biologique a été effectuée sur la base d'études pharmacocinétiques. Les expériences menées ont montré la possibilité d'utiliser la sonde pour des mesures radioactives sous champ magnétique intense
simultanément à l'acquisition d'images anatomiques. Parallèlement, nous avons cherché à améliorer la quantification du signal radioactif grâce à l'utilisation d'un fantôme voxelisé de cerveau de rat. Enfin, l'émergence des modèles transgéniques nous a conduit à reproduire des études pharmacocinétiques chez la souris et à développer des fantômes voxelisés de souris.
Zarefy, Amjaad. "Nanostructure et couplage magnétique dans des couches minces (Pt/Co)3/IrMn à anisotropie d'échange perpendiculaire." Phd thesis, Rouen, 2011. http://www.theses.fr/2011ROUES051.
Full textThis thesis is devoted to the correlation of the structural properties at the atomic scale with the magnetic properties of (Pt=CotCo)3=PttP t=IrMn multilayers with perpendicular exchange bias. Such multilayers are used in spintronics. A particular attention has been devoted to the structural characterization of the Co=IrMn interface. This interface plays a determining role in the exchange bias phenomenon, characterized by the exchange bias field HE. Investigation at the nanostructural scale has been carried out using atom probe tomography. Magnetic measurements were performed with a SQUID magnetometer. The results of magnetic measurements show that the insertion of a Pt spacer at the Co=IrMn interface increases HE for the multilayer in which the thickness of the Co layers (tCo) is 0. 4 nm, but decreases HE for the multilayer with tCo = 0. 6 nm. Nanostructural analyses showed that in the absence of the spacer and for tCo=0. 4 nm, Ir and Mn diffuse within the whole Co layer onto which the IrMn layer was deposited, while for tCo= 0. 6 nm the Ir and Mn diffusion is much more reduced. On the other hand, whatever the thickness of the Co layer, the spacer reduces the Ir and Mn diffusion, thus acting as a diffusion barrier. Consequently, for multilayers with tCo = 0. 4 nm, the spacer limits the interdiffusion at the Co=IrMn interface, leading to an increase of HE. The Ir andMn diffusion in the Co layer being limited for the multilayer with tCo= 0. 6 nm, the spacer moves away the Co spins from the Mn spins, leading to a decrease of HE
Books on the topic "Sonde IRM"
Leon Garfield raconte Shakespeare: Roméo etJuliette - Hamlet -e 141 tempéte - roi Imr - IA mégere apprivoisée - If songe d'une nuit d'été. Gallimard, 1993.
Find full textBook chapters on the topic "Sonde IRM"
Wittlinger, Jürgen K. "Von der Sonne zum Strom." In Photovoltaikanlagen im Steuerrecht, 1–22. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-09128-6_1.
Full textAlt, Franz. "Bürger, zur Sonne — zur Freiheit!" In Energie im Wandel, 241–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56592-2_19.
Full textWittlinger, Jürgen K. "Von der Sonne zum Strom." In Photovoltaikanlagen im Steuerrecht, 1–22. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-28442-8_1.
Full textWittlinger, Jürgen K. "Von der Sonne zum Strom." In Photovoltaikanlagen im Steuerrecht, 1–23. Wiesbaden: Springer Fachmedien Wiesbaden, 2023. http://dx.doi.org/10.1007/978-3-658-40321-8_1.
Full textStiglegger, Marcus. "Laibach – Sieg unter der Sonne." In Populäre Musikkulturen im Film, 191–212. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-10896-0_9.
Full textKwok, Sun. "Ist die Sonne ein Stern?" In Unser Platz im Universum - II, 77–81. Cham: Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-67563-8_7.
Full textKwok, Sun. "Reise der Sonne unter den Sternen." In Unser Platz im Universum, 53–64. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-37840-9_6.
Full textPodbregar, Nadja. "Sturm von der Sonne – Höllenfeuer im Lichtgestirn." In Im Fokus: Sonnensystem, 11–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41895-2_2.
Full textKwok, Sun. "Dreht sich die Erde wirklich um die Sonne?" In Unser Platz im Universum, 187–94. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-37840-9_17.
Full textStevens, Alexander. "Strafrechtlich relevante Tatbestände bei Ausübung von Sonder- und Wegerechten." In Blaulicht und Martinshorn im Strafrecht, 23–47. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-11504-3_2.
Full textConference papers on the topic "Sonde IRM"
Sampaio, MM, and AS Ferreira. "POLIMORFISMOS DA IL-6 E SUA RELAÇÃO COM TRICHOMONAS VAGINALIS: UM ESTUDO PRELIMINAR COM MULHERES EM IDADE REPRODUTIVA." In Resumos do 55º Congresso Brasileiro de Patologia Clínica/Medicina Laboratorial, 81. Zeppelini Editorial e Comunicação, 2023. http://dx.doi.org/10.5327/1516-3180.141s2.7776.
Full textReports on the topic "Sonde IRM"
Kieslinger, Daniel, and Judith Owsianowski. Newsletter Inklusion jetzt! Juli 2023. BVKE, EREV, Inklusion jetzt!, July 2023. http://dx.doi.org/10.54953/ixam7633.
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