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<dc:title xml:lang="en">Évaluation de la perfusion viscérale et anastomotique par réalité augmentée basée sur la fluorescence</dc:title>
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<dc:subject xml:lang="fr">Angiographie par fluorescence</dc:subject>
<dc:subject xml:lang="fr">Réalité augmentée basée sur la fluorescence</dc:subject>
<dc:subject xml:lang="fr">Évaluation de la perfusion assistée par ordinateur</dc:subject>
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<dc:subject xml:lang="fr">Chirurgie guidée par fluorescence</dc:subject>
<dc:subject xml:lang="fr">Vert d’indocyanine</dc:subject>
<dc:subject xml:lang="fr">Perfusion tissulaire</dc:subject>
<dc:subject xml:lang="fr">Ischémie du côlon</dc:subject>
<dc:subject xml:lang="fr">Apprentissage automatique</dc:subject>
<dc:subject xml:lang="fr">Surrénalectomie postérieure</dc:subject>
<dc:subject xml:lang="fr">Rétropéritonéoscopique</dc:subject>
<dc:subject xml:lang="fr">Surrénalectomie mini-invasive</dc:subject>
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<dc:subject xml:lang="en">Fluorescence angiography</dc:subject>
<dc:subject xml:lang="en">Fluorescence-based enhanced reality</dc:subject>
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<dc:subject xml:lang="en">Posterior retroperitoneoscopic adrenalectomy</dc:subject>
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<tef:elementdEntree autoriteExterne="059303263" autoriteSource="Sudoc">Réalité augmentée</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">La technique de réalité augmentée basée sur la fluorescence permet de quantifier la dynamique d’un signal fluorescent et de superposer une cartographie de perfusion aux images laparoscopiques en temps réel. Un modèle d’ischémie colique a été choisi afin de différencier différents types d’ischémie et l’extension d’une zone ischémique dans les différentes couches de la paroi. L’évaluation de la dynamique de fluorescence assistée par logiciel et couplée à une approche d’apprentissage automatique a permis de faire la distinction entre une ischémie d’origine artérielle et d’origine veineuse avec un bon taux de prédiction. Dans la seconde étude colique, les cartographies de perfusion ont clairement mis en évidence que l’étendue d’ischémie était significativement plus large du côté muqueux et risquait d’être sous-estimée avec une analyse exclusive du côté séreux. Deux études ont démontré que la technique d’imagerie par fluorescence permet de guider le chirurgien en temps réel au cours d’une chirurgie mini-invasive des glandes surrénales et que l’analyse quantitative effectuée avec le logiciel facilite la distinction entre les segments vascularisés et ischémiques.</dcterms:abstract>
<dcterms:abstract xml:lang="en">The fluorescence-based enhanced reality approach is used to quantify fluorescent signal dynamics and superimpose the perfusion cartography onto laparoscopic images in real time. A colonic ischemia model was chosen to differentiate between different types of ischemia and determine the extension of an ischemic zone in the different layers of the colonic wall. The evaluation of fluorescence dynamics associated with a machine learning approach made it possible to distinguish between arterial and venous ischemia with a good prediction rate. In the second study, quantitative perfusion assessment showed that the extent of ischemia was significantly larger on the mucosal side, and may be underestimated with an exclusive analysis of the serosal side. Two further studies have revealed that fluorescence imaging can guide the surgeon in real time during minimally invasive adrenal surgery, and that quantitative software fluorescence analysis facilitates the distinction between vascularized and ischemic segments.</dcterms:abstract>
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