Academic literature on the topic 'Ablation par cathéter de radiofréquence'
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Journal articles on the topic "Ablation par cathéter de radiofréquence":
Teriitehau, C., L. Tselikas, J. Potet, G. Farouille, F. Deschamps, and T. de Baere. "Thermo-ablation par radiofréquence des lésions pulmonaires." Revue des Maladies Respiratoires Actualités 5, no. 5 (September 2013): 496–503. http://dx.doi.org/10.1016/s1877-1203(13)70447-6.
Hocini, M., P. Jaïs, M. Haïssaguerre, S. Garrigue, P. le Métayer, and J. Clémenty. "Ablation par radiofréquence de la fibrillation auriculaire." Annales de Cardiologie et d'Angéiologie 52, no. 4 (August 2003): 258–63. http://dx.doi.org/10.1016/s0003-3928(03)00088-x.
Derval, N., F. Sacher, A. Deplagne, M. Hocini, P. Bordachar, Ph Ritter, P. Jaïs, J. Clémenty, and M. Haissaguerre. "Ablation par radiofréquence de la fibrillation atriale." Annales de Cardiologie et d'Angéiologie 58 (December 2009): S50—S54. http://dx.doi.org/10.1016/s0003-3928(09)73401-8.
Lermite, Émilie, Christophe Aubé, Patrick Pessaux, and Jean-Pierre Arnaud. "Thermo-ablation par radiofréquence des tumeurs hépatiques." La Presse Médicale 36, no. 7-8 (July 2007): 1127–34. http://dx.doi.org/10.1016/j.lpm.2006.12.008.
Armoiry, Xavier, Pierre-Olivier Marguet, Thierry Ponchon, and Gilles Aulagner. "Ablation des néoplasies épithéliales circulaires de l’œsophage par radiofréquence." Actualités Pharmaceutiques Hospitalières 6, no. 21 (February 2010): 45–46. http://dx.doi.org/10.1016/s1769-7344(10)70242-0.
Fromentin, S., M. Adris, F. Jourda, R. Fouche, and F. Philippon. "Ablation par radiofréquence d’un foyer d’extrasystoles ventriculaires gauches du muscle papillaire." Annales de Cardiologie et d'Angéiologie 61, no. 5 (November 2012): 389–93. http://dx.doi.org/10.1016/j.ancard.2012.09.013.
Igney-Oertel, Annette, Ferruh Artunc, Jörg Henes, Ruediger Hoffmann, and Stephan Clasen. "Ostéomalacie provoquée par une tumeur mésenchymateuse productrice de FGF23 : ablation par radiofréquence suivie de guérison." Revue du Rhumatisme 84, no. 4 (July 2017): 361–62. http://dx.doi.org/10.1016/j.rhum.2017.04.007.
Raymond, J., and F. Bouzeghrane. "Ablation endothéliale par radiofréquence dans la prévention de la récanalisation après embolisation." Journal of Neuroradiology 35, no. 1 (February 2008): 29–30. http://dx.doi.org/10.1016/j.neurad.2008.01.076.
Dousset, B., Ph de Mestier, and C. Vons. "Les récidives locorégionales sont fréquentes après ablation des carcinomes hépatocellulaires par radiofréquence." Journal de Chirurgie 141, no. 2 (March 2004): 123–24. http://dx.doi.org/10.1016/s0021-7697(04)95586-x.
Guerrache, Y., M. Boudiaf, P. Méria, E. de Kerviler, and P. Soyer. "Hémorétropéritoine massif après ablation percutanée par radiofréquence d’une tumeur rénale : traitement par embolisation artérielle en urgence." Journal de Radiologie 91, no. 9 (September 2010): 905–6. http://dx.doi.org/10.1016/s0221-0363(10)70133-5.
Dissertations / Theses on the topic "Ablation par cathéter de radiofréquence":
Da, Costa Antoine. "Le flutter auriculaire : évolution du traitement par radiofréquence." Saint-Etienne, 2003. http://www.theses.fr/2003STET014T.
Hoyland, Philip. "Computer-assisted electrophysiological intervention treating complex ventricular arrhythmias." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0271.
Since the beginning of the nineties and the use of radiofrequency to ablate cardiac arrhythmias, electrophysiologists treat rhythm disorders of increasing complexity. 3D mapping systems enable catheter locations to be determined with high precision and therefore are very important tools for cardiac electrophysiologists. Identifying zones of interest remains long and involves a great number of steps based on indirect analyses of the heart's electrical properties. The main objective of the thesis is the development of new tools to locate the critical isthmus in patients who have ventricular tachycardia after myocardial infarction. The clear identification of the circuit components of the ventricular tachycardia enables the implementation of an ablation strategy to treat the patient. The studied methods do not require a 12-lead electrocardiogram (ECG) of the ventricular tachycardia and therefore have the advantage of being able to be used even if the ventricular tachycardia cannot be initiated during the procedure. Pace mapping consists of stimulating the myocardium and analyzing the induced signal, the 12-lead morphology and the S-QRS interval. A major area of research is the development of an algorithm that automatically extracts the relevant data obtained during pace mapping. This facilitates the display of multi-parametric maps highlighting potential reentry circuits. Another area of research is the development of a graph-based method to study the variations of the electrical properties of the ventricle. The paced points are considered as vertices of a graph. Each edge is given a weight and finding the path between two vertices of minimum weight allows the analysis of potential reentry circuits
Navoret, Nicolas. "Analyse et détection des électrogrammes complexes fractionnés en vue de soigner la fibrillation auriculaire à l'aide de techniques d'ablation par radiofréquence." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00926703.
Elbes, Delphine. "Thermothérapies par ultrasons focalisés et radiofréquences guidées par imagerie de résonance magnétique." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14683/document.
My manuscript studies the development of mini and non invasive thermotherapies guided by magnetic resonance imaging (MRI) in the treatment of hepatic and cardiac diseases. The first part was the development of a method to increase the lesion size, induced by HIFU, and based on bubble enhanced heating (BEH). The acoustic power threshold of the BEH was determined by MR acoustic radiation force imaging (MR-ARFI) and the thermal effect was characterized by MR thermometry on ex vivo and in vivo in pig livers. The second part developed a strategy to perform HIFU through the rib cage using beam steering to track the respiratory movement or to performed multipoint ablation while avoiding heating of ribs. Transducer elements localized in the geometric projection of the shadow of ribs, relatively to the targeted focal point, were switched off.The third part was the development of the MR thermometry on the heart for the monitoring of radiofrequency ablation (RFA). Several aspects were investigated, in particular the thermometry precision, the feasibility to perform catheter radiofrequency ablation under MR thermometry in vivo in a sheep heart, the possibility to use the catheter as an MR antenna to increase spatial resolution of MR thermometry images
Pasquié, Jean-Luc. "Ablation du flutter auriculaire par courant de radiofréquence." Montpellier 1, 1995. http://www.theses.fr/1995MON11055.
Gauffre, Olivier. "Ablation par cathéter endocavitaire des fibres de mahain : à propos de 6 cas." Bordeaux 2, 1992. http://www.theses.fr/1992BOR23073.
Toupin, Solenn. "Cardiac MR thermometry for the monitoring of radiofrequency ablation." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0346/document.
Radiofrequency ablation is a therapeutic procedure for the treatment of cardiac arrhythmia by inducing a local necrosis of the arrhythmogenic tissue. This intervention is currently performed without online imaging of the lesion formation during radiofrequency delivery. MR thermometry provides a monitoring of temperature in the targeted tissue in each pixel and an immediate estimation of lesion via the calculation of the thermal dose. If this technique is well established for the guidance of tumor ablation in various organs, it remains challenging in the heart due to motion (breathing and myocardial contraction). In this work, a cardiac MR thermometry method was developed to perform a real-time temperature mapping of the heart under free-breathing conditions. Several MR pulse sequences were designed to ensure the acquisition of up to 5 slices per heartbeat with a voxel size of 1.6X1.6X3 mm3. Different solutions of minimization of out-of-plane motion were evaluated: alignment of the slices in the main direction of displacement, dynamic update of slice position depending on the respiratory state (echo-navigator, measure of the catheter position). Residual in-plane motion and associated susceptibility artifacts were corrected by real-time algorithms to allow a precision of MR thermometry of ±2°C in ventricles. This protocol was successfully used for the monitoring of radiofrequency ablation in sheep (N=3), allowing a correlation (R=87) between thermal dose maps and sizes of created lesions. These results are promising regarding the relevance of this measure for an inline estimation of the lesion extent during ablation
Ficai, Silvia. "Traitement par ablation par radiofréquence et stimulaion simple chambre des cardiopathies obstructives en fibrillation auriculaire chronique." Montpellier 1, 1999. http://www.theses.fr/1999MON11097.
Brusson, Matthieu. "CAThéter Hyperfréquence pour ARythmies : CATHAR : détermination de la profondeur de brulure de tissus biologiques par voie microonde." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS016/document.
Cardiac arrhythmia substrates may be treated by intracardiac ablations which consist in burning specific atrial or ventricular endocardial substrates. Created lesions which are not transmural may be responsible for arrhythmia recurrences. To date, the depth of the lesion inside the endocardium can't be assessed accurately during the procedures. Our experimental work has focused on microwave characterization of biological tissues (in vitro) to assess the burn depth. Using a reflection technique with a coaxial probe in contact with tissues, measurements were made over a wide frequency range (100 MHz to 6 GHz). The measured reflection coefficient is known to be directly related to the dielectric properties of the tissues. We therefore measured the relative variation of the reflection of the tissue. In order to determine the burn depth of the tissue, the imaginary part of the relative variation is studied as a function of the real part of the relative variation for each frequency. Thus, we observe an evolution of the signal as a function of the burn depth. The determination of the tissue burned depth in a liquid medium is possible
Meo, Marianna. "Caractérisation spatio-temporelle de l’électrocardiogramme de surface pour prédire le résultat de l’ablation par cathéter de la fibrillation atriale persistante." Thesis, Nice, 2013. http://www.theses.fr/2013NICE4122/document.
Atrial fibrillation (AF) is the most common sustained arrhythmia encountered in clinical practice, and one of the main causes of stroke. Yet its thorough characterization and treatment remain an open issue. Despite the increasing popularity of the radiofrequency catheter ablation (CA) therapy, very little is known about its impact on heart substrate, leading to rather uncertain success rates. This calls for advanced signal processing tools for quantitatively assessing CA outcome. The surface 12-lead electrocardiogram (ECG), a noninvasive and cost-effective cardiac activity recording modality, provides valuable information about AF. However, some issues affect most of the standard CA outcome predictors, e.g., manual computation and limited single-lead perspective. This thesis aims at explicitly exploiting the ECG’s multilead character through multivariate decomposition tools, so as to enhance the role of some ECG features as CA outcome predictors. Fibrillatory wave amplitude is correlated with CA success in a multilead framework through principal component analysis (PCA). Multivariate approaches also enhance AF spatiotemporal variability measured on the ECG (e.g., weighted PCA, nonnegative matrix factorization), evidencing that the less repetitive the AF pattern, the less likely CA success. Information theory also quantifies interlead similarity between AF patterns, and is linked with CA outcome in a multilead framework. Another perspective focuses on the ventricular response as reflected on heart rate variability (HRV). Point process modeling can highlight certain HRV properties typical of AF in a parametric probabilistic context, helping AF pattern recognition