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Academic literature on the topic 'CholangioPancréatographie Rétrograde par voie Endoscopique (CPRE)'
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Journal articles on the topic "CholangioPancréatographie Rétrograde par voie Endoscopique (CPRE)"
Tzedakis, S., R. Memeo, M. Nedelcu, H. Jeddou, M. Rodriguez, M. Delvaux, J. Huppertz, D. Mutter, J. Marescaux, and P. Pessaux. "Cholangiopancréatographie rétrograde endoscopique par voie trans-gastrique cœlio-assistée : expérience préliminaire et description de la technique." Journal de Chirurgie Viscérale 156, no. 5 (October 2019): 416–22. http://dx.doi.org/10.1016/j.jchirv.2017.09.010.
Full textParkinson, Matt, Jenna Poirier, Erin Belmore, and Len Kelly. "Rendezvous procedure, a simultaneous endoscopic retrograde cholangiopancreatography and laparoscopic cholecystectomy for choledocholithiasis, in a rural surgical program in Northwest Ontario." Canadian Journal of Rural Medicine 28, no. 4 (2023): 190–94. http://dx.doi.org/10.4103/cjrm.cjrm_8_23.
Full textCaucanas, J. P., J. Lapuelle, J. Cassigneul, J. Clanet, P. Coulom, and J. Rumeau. "Pancréatite après cholangiopancréatographie rétrograde par voie endoscopique (CPRE)." Acta Endoscopica 24, no. 3 (May 1994). http://dx.doi.org/10.1007/bf02969606.
Full textDissertations / Theses on the topic "CholangioPancréatographie Rétrograde par voie Endoscopique (CPRE)"
Essamlali, Abdelhadi. "Reconstruction 3D des voies biliaires pour l’amélioration de la CholangioPancréatographie Rétrograde par voie Endoscopique (CPRE)." Electronic Thesis or Diss., Compiègne, 2024. http://www.theses.fr/2024COMP2841.
Full textThis thesis addresses the challenge of improving Endoscopic Retrograde Cholangiopancreatography (ERCP) by proposing an advanced method for 3D reconstruction of bile ducts. Current ERCP techniques face significant limitations, mainly due to the difficulty of visualizing bile ducts using 2D images, which can lead to planning errors and complications during interventions. The use of 3D reconstruction of bile ducts from MR cholangiography (MRCP) images presents a promising solution to overcome these challenges. The thesis introduces a novel approach for automatic segmentation called BDU-Net, based on the U-Net architecture and specifically tailored to MRCP images. The performance of BDU-Net was compared with other reference segmentation models, such as V-Net and U-Net++, using quantitative metrics like the Dice score and Hausdorff distance, as well as a qualitative assessment by experts. The results show a significant improvement in the accuracy of 3D reconstructions with BDU-Net. Additionally, the thesis explores the impact of various preprocessing methods for MRCP images, including dynamic cropping, to enhance the segmentation quality. This preprocessing step improves the visualization of bile duct structures and enhances 3D reconstruction, especially in complex cases. Beyond segmentation contributions, the thesis also presents a plugin called CPRE Pro, developed for the 3DSlicer platform. This tool integrates 3D reconstructions into the clinical workflow, facilitating ERCP planning. With an intuitive interface, clinicians can interact with MRCP images, perform automatic segmentations, and visualize bile duct anatomy in 3D, thus improving clinical decision-making and intervention planning
Becq, Aymeric. "Élaboration et mise en pratique préclinique d'outils robotiques d'assistance à la réalisation d'une cholangiopancréatographie rétrograde par voie endoscopique : Projet MAGIE : Modèle d'Assistance au Geste Interventionnel en Endoscopie." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS068.
Full textEndoscopic retrograde cholangiopancreatography (ERCP) is a minimally invasive interventional endoscopic procedure whose objective is to provide treatment within the bile ducts. The two main pathologies treated are stone disease and biliopancreatic tumors.The interpretation of the biliary anatomy in the setting of strictures located at the level of the upper biliary convergence (peri-hilar region) and the manipulation of the guide wire in this complex biliary anatomy greatly limit the procedures success, which pushed us to develop new tools to better navigate within the bile ducts. We focused during this thesis work on the modelization of the bile ducts by 3D segmentation-reconstruction, on assisted localization of ERCP instruments by 2D-3D registration and tracking and, finally, the design and validation of active instruments.We performed manual segmentations of biliary trees from biliary MRI images for cases of malignant perihilar strictures. Based on these segmentations, a retrospective study analyzing the management of these patients showed the limits of current 2D ERCP with a high number of unnecessary contrast injections, unnecessary or poorly placed biliary stents, as well as unwarranted repeat ERCPs. 3D reconstruction could improve the endoscopic technique. Collaborative work with a specialized team was initiated to develop automated segmentation-reconstruction. The first results are encouraging although not as performant as the manual ground truth. The database is being increased with more cases that will strengthen the deep learning.The second objective of this work was the automatic intraoperative 3D tracking and localization of instruments within complex bile ducts. Here we wanted to develop a real-time assistance system explicitly indicating the intra-hepatic sector where the guide wire is located. A first step, based on artificial intelligence, consisted of developing an automatic segmentation of the guide wire in the 2D fluoroscopy image. The CNN models developed by a specialized team allows the segmentation of a significant portion of the instruments at this stage.The second step consisted on the development and testing of an algorithm for intraoperative localization of the guide wire. Based on the fusion between 3D anatomical reconstruction and segmentation of the guidewire in the 2D image, a program was developed which gives a localization probability. The sensitivity of the algorithm is 91%. In the case of complex biliary trees, lower performances are seen, but remain high with a sensitivity of 86%. Future developments are underway to render the algorithm more reliable.The third objective of this work was to contribute to the emergence of a new generation of guide wires which can be actively oriented in space in order to navigate more easily within the biliary tree, pathological or not. We relied here on shape memory alloy technology. 3D models of the biliary tree were printed using the manual segmentations. A model duplicating the complete CPRE environment, called ‘CPRE-model', was designed and then manufactured in order to be able to test the intelligent guidewires. A first series of tests compared an intelligent guidewire (Gecko 35Ⓡ, BCV) to two guidewires used in current practice. Overall, the first manipulations show feasibility with catheterization of the majority of intrahepatic sectors. After printing new models and improving the CPRE model, a second series of tests with other experts will be carried out