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Artykuły w czasopismach na temat "Extraction de vaisseaux sanguins"
Valin, Isabelle, i Dan Rosenberg. "Surrénalectomies". Le Nouveau Praticien Vétérinaire canine & féline 19, nr 82 (grudzień 2022): 50–63. http://dx.doi.org/10.1051/npvcafe/2022074.
Pełny tekst źródłaMoussion, Christine, i Jean-Philippe Girard. "Les vaisseaux sanguins HEV". médecine/sciences 28, nr 4 (kwiecień 2012): 347–49. http://dx.doi.org/10.1051/medsci/2012284004.
Pełny tekst źródłaBessaguet, Flavien, Daniel Henrion i Alexis Desmoulière. "Organisation générale des vaisseaux sanguins". Actualités Pharmaceutiques 61, nr 619 (październik 2022): 53–56. http://dx.doi.org/10.1016/j.actpha.2022.07.046.
Pełny tekst źródłaTréguer, Karine, Susanne Heydt i Eduard Hergenreider. "Protection des vaisseaux sanguins contre l’athérosclérose". médecine/sciences 28, nr 6-7 (czerwiec 2012): 584–87. http://dx.doi.org/10.1051/medsci/2012286010.
Pełny tekst źródłaAzzi, Sandy, i Julie Gavard. "Vaisseaux sanguins et tumeurs ou l’art du dialogue". médecine/sciences 30, nr 4 (kwiecień 2014): 408–14. http://dx.doi.org/10.1051/medsci/20143004015.
Pełny tekst źródłaYvan-Charvet, Laurent, i Johanna Merlin. "Le sommeil protège-t-il nos vaisseaux sanguins ?" médecine/sciences 35, nr 10 (październik 2019): 743–46. http://dx.doi.org/10.1051/medsci/2019147.
Pełny tekst źródłaBinet, François, Ariel M. Wilson i Przemyslaw Sapieha. "La NETose favorise le remodelage des vaisseaux sanguins sénescents". médecine/sciences 37, nr 5 (maj 2021): 541–43. http://dx.doi.org/10.1051/medsci/2021047.
Pełny tekst źródłaVandenbunder, B. "Le VEGF-C et son récepteur Flt4/VEFGR-3 : des vaisseaux lymphatiques aux vaisseaux sanguins." médecine/sciences 15, nr 1 (1999): 115. http://dx.doi.org/10.4267/10608/1210.
Pełny tekst źródłaLacoste, Baptiste. "L’activité neuronale influence le développement des vaisseaux sanguins du cerveau". médecine/sciences 30, nr 12 (grudzień 2014): 1063–66. http://dx.doi.org/10.1051/medsci/20143012003.
Pełny tekst źródłaNau, J. Y. "Découverte de l’une des clefs moléculaires de la croissance des vaisseaux sanguins". Revue Médicale Suisse 62, nr 2504 (2004): 2269. http://dx.doi.org/10.53738/revmed.2004.62.2504.2269.
Pełny tekst źródłaRozprawy doktorskie na temat "Extraction de vaisseaux sanguins"
Bizeau, Alexandre. "Segmentation et extraction de caractéristiques des vaisseaux sanguins cérébraux à l'aide de l'IRM". Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10259.
Pełny tekst źródłaAbstract : The neurovascular coupling is a growing field; it studies the effects of cerebral activity on the behaviour of cerebral blood flow (CBF) and the blood vessels themselves. With the help of magnetic resonance imaging (MRI), it is possible to obtain images such as susceptibility weighted imaging (SWI) to see the veins or time-of-flight magnetic resonance angiography (TOF MRA) to visualize the arteries. These images allow having a structural representation of vessels in the brain. This thesis presents a method to segment blood vessels from structural images and extract their features. Using the segmentation mask, it is possible to calculate the diameter of the vessels as well as their length. With the help of such automatic segmentation tools, we conducted a study to analyze the behaviour of blood vessels during neuronal activities. Due to visual stimulation, we have acquired two images; one at rest and the other with stimulation. We compare the diameter in each of the images and obtain vasodilation in millimeters, but also as a percentage in each voxel. We also calculated the distance between the activation site and each voxel to see the magnitude of the vasodilation function of the distance. All this provides a better understanding of the vascular system of the human brain.
Sadikine, Mohamed Amine. "Deep vascular segmentation with geometric and topological constraints". Electronic Thesis or Diss., Brest, 2024. http://www.theses.fr/2024BRES0042.
Pełny tekst źródłaIn the evolving field of medical image analysis, blood vessel segmentation plays a key role in improving computer-aided diagnosis and surgical planning. This work combines three innovative contributions to advance the automatic segmentation of vascular structures. Firstly, we introduce a novel methodology that enhances U-Net inspired architectures with a semi-overcomplete convolutional auto-encoder that integrates shape priors to improve the delineation of intricate vascular systems, with a specific emphasis on characterizing fine structures. Subsequently, our research delves into enhancing vessel delineation through a novel joint prior encoding mechanism that combines geometric and topological constraints, providing a unified latent space that captures contextual information and connectivity of blood vessels, thereby addressing the challenges posed by their anatomical variability. Finally, we present a novel clustering technique for scale decomposition, along with a multi-task supervised approach that incorporates scale-specific auxiliary tasks and contrastive learning. These advances represent a step forward in reliable automated vascular segmentation, offering the potential to enhance clinical outcomes in a wide range of applications in clinical routine
Fouard, Céline. "Extraction de paramètres morphométriques pour l'étude du réseau micro-vasculaire cérébral". Phd thesis, Université Nice Sophia Antipolis, 2005. http://tel.archives-ouvertes.fr/tel-00308884.
Pełny tekst źródłaAl, Moussawi Ali. "Reconstruction 3D de vaisseaux sanguins". Thesis, Toulon, 2014. http://www.theses.fr/2014TOUL0014/document.
Pełny tekst źródłaThis work concerns the 3D reconstruction of blood vessels from a limited number of 2D transversal cuts obtained from scanners. If data are missing, a coherentreconstruction with a vessel network is obtained. This approach allows to limit human interventions in processing images of 2D transversal cuts. Knowing that the images used are obtained by scanner, the difficulty is to connect the blood vessels between some widely spaced cuts in order to produce the graph corresponding to the network of vessels. We identify the vessels on each trnasversal cut as a mass to be transported, we construct a graph solution of a branched transport problem. At this stage, we are able to reconstruct the 3D geometry by using the 2D Level Set Functions given by the transversal cuts and the graph information. The 3D geometry of blood vessels is represented by the data of the Level Set function defined at any point of the space whose 0-level corresponds to the vessel walls. The resulting geometry is usually integrated in a fluid mechanic code solving the incompressible Navier-Stokes equations on a Cartesian grid strictly included in a reconstructed geometry. The inadequacy of the mesh with the interface of the geometry is overcomed thanks to a modified boundary condition leading to an accurate computation of the constraints to the walls
Al, Moussawi Ali. "Reconstruction 3D de vaisseaux sanguins". Electronic Thesis or Diss., Toulon, 2014. http://www.theses.fr/2014TOUL0014.
Pełny tekst źródłaThis work concerns the 3D reconstruction of blood vessels from a limited number of 2D transversal cuts obtained from scanners. If data are missing, a coherentreconstruction with a vessel network is obtained. This approach allows to limit human interventions in processing images of 2D transversal cuts. Knowing that the images used are obtained by scanner, the difficulty is to connect the blood vessels between some widely spaced cuts in order to produce the graph corresponding to the network of vessels. We identify the vessels on each trnasversal cut as a mass to be transported, we construct a graph solution of a branched transport problem. At this stage, we are able to reconstruct the 3D geometry by using the 2D Level Set Functions given by the transversal cuts and the graph information. The 3D geometry of blood vessels is represented by the data of the Level Set function defined at any point of the space whose 0-level corresponds to the vessel walls. The resulting geometry is usually integrated in a fluid mechanic code solving the incompressible Navier-Stokes equations on a Cartesian grid strictly included in a reconstructed geometry. The inadequacy of the mesh with the interface of the geometry is overcomed thanks to a modified boundary condition leading to an accurate computation of the constraints to the walls
Donatini, Bruno. "Vaisseaux sanguins et lymphatiques du pancreas : tentative de typologie". Paris 5, 1991. http://www.theses.fr/1991PA05S003.
Pełny tekst źródłaVaglio, Giovanna. "Analyse histo-morphométrique des vaisseaux sanguins du ligament parodontal bovin /". Genève : [s.n.], 2008. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000253997.
Pełny tekst źródłaGodin, Denis. "Caractérisation des récepteurs activés par protéolyse dans les vaisseaux sanguins". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25413.pdf.
Pełny tekst źródłaCarneiro, Esteves Sophie. "Segmentation des vaisseaux sanguins par approche variationnelle et apprentissage profond". Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0034.
Pełny tekst źródłaAccurate segmentation of blood vessels from medical images plays a crucial role in various clinical applications, such as surgical planning, disease diagnosis, and treatment monitoring. However, the task is challenging due to the diversity of imaging modalities, the complex geometry, and the low contrast of biomedical images. Deep learning provides significant representation power to learn a function that enables precise segmentation. Nevertheless, even with the development of semi-supervised methods, this function remains dependent on the available annotated dataset. On the other hand, unsupervised methods tend to generalize better, but their performance in terms of segmentation is generally much lower, especially when it comes to preserving connectivity, which is crucial for clinical applications.In this work, we propose novel methods for blood vessel segmentation that aim to preserve the connectivity of vascular networks across different imaging modalities in order to address both generalization and efficiency.Taking advantage of deep learning, we first develop a model to reconnect fragmented binary vascular structures in 2D and in 3D. This model can be applied as a post-processing in an unsupervised or supervised context, depending on the availability of vascular annotations of the target dataset. Furthermore, we show the possibility of applying it to segmentations obtained by different methods.However, the use of the reconnecting model as a post-processing does not allow to take advantage of the vascular structure prior present in medical images. Therefore, we propose to use our reconnecting model jointly with the segmentation task. To this end, we have integrated it into a variational segmentation scheme, that allows the detection of vascular networks in different datasets without the need for annotation. We tested our method on different datasets including 2D retinal fundus images, 3D liver CT volume scans and 3D brain TOF-MRA. We show that it better preserves the structure of vascular networks in real images compared to traditional unsupervised and semi-supervised methods, while improving the overall connectivity of the vascular tree
Dauphin, François. "Innervation cholinergique des vaisseaux sanguins cérébraux : origines possibles, pharmacologie et physiologie". Paris 5, 1990. http://www.theses.fr/1990PA05P615.
Pełny tekst źródłaKsiążki na temat "Extraction de vaisseaux sanguins"
Bacourt, François. L' opéré vasculaire. Wyd. 2. Paris: Masson, 1991.
Znajdź pełny tekst źródłaJames, Grant. Electricity and brain power. [S.l: s.n., 1985.
Znajdź pełny tekst źródłaBecker, François. Dictionnaire des termes de médecine vasculaire. Wyd. 2. [Paris]: Acanthe, 2004.
Znajdź pełny tekst źródłaToledano, Ariel. Jambes légères: 4 programmes pour améliorer la circulation de vos jambes. [Paris]: Marabout, 2008.
Znajdź pełny tekst źródła1928-, Strandness D. E., red. Vascular diseases: Current research and clinical applications. Orlando: Grune & Stratton, 1987.
Znajdź pełny tekst źródła1931-, Rutherford Robert B., red. Vascular surgery. Wyd. 5. Philadelphia: Saunders, 2000.
Znajdź pełny tekst źródłaLee, Robert M. K. W., 1943-, red. Blood vessel changes in hypertension: Structure and function. Boca Raton, Fla: CRC Press, 1989.
Znajdź pełny tekst źródłaH, Stone John, red. Vasculitis. Philadelphia: Saunders, 2007.
Znajdź pełny tekst źródłaHouston, Mark C. Vascular biology in clinical practice. Philadelphia: Hanley & Belfus, 2002.
Znajdź pełny tekst źródłaJ, Zwiebel William, red. Introduction to vascular ultrasonography. Wyd. 2. Orlando: Grune & Stratton, 1986.
Znajdź pełny tekst źródłaCzęści książek na temat "Extraction de vaisseaux sanguins"
MENDEZ, Simon, Alain BÉROD, Christophe CHNAFA, Morgane GARREAU, Étienne GIBAUD, Anthony LARROQUE, Stéphanie LINDSEY i in. "YALES2BIO : un solveur dédié aux écoulements sanguins". W Écoulements biologiques dans les grands vaisseaux, 185–208. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9065.ch7.
Pełny tekst źródłaPODGORSKI, Thomas. "Hémodynamique et hémorhéologie". W Écoulements biologiques dans les grands vaisseaux, 5–44. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9065.ch1.
Pełny tekst źródłaVENTRE, Jeanne, José-Maria FULLANA, Pierre-Yves LAGRÉE, Francesca RAIMONDI i Nathalie BODDAERT. "Modèles d’ordre réduit du flux sanguin : application aux sténoses artérielles". W Écoulements biologiques dans les grands vaisseaux, 163–83. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9065.ch6.
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