Estimation de l'échelle en coloscopie monoculaire par quantification du flou optique: étude de faisabilité

Conference item


Chadebecq, F., Tilmant, C., Julien, P., Collins, T. and Bartoli, A. 2012. Estimation de l'échelle en coloscopie monoculaire par quantification du flou optique: étude de faisabilité. Reconnaissance des Formes et Intelligence Artificielle 2012. Lyon, France 24 - 27 Jan 2012 HAL Open Science.
TitleEstimation de l'échelle en coloscopie monoculaire par quantification du flou optique: étude de faisabilité
AuthorsChadebecq, F., Tilmant, C., Julien, P., Collins, T. and Bartoli, A.
Abstract

La coloscopie est aujourd'hui la procédure médicale privilégiée dans le cadre du diagnostic et du traitement des pathologies en gastroentérologie. Ce mode opératoire qualifié de "mini-invasif" repose sur l'utilisation d'un instrument optique flexible, le flexoscope, qui est introduit par voie basse dans le corps du patient pour permettre l'exploration du côlon. L'intervention est réalisée par un gastroentérologue qui s'appuie sur les images diffusées sur un moniteur afin d'établir un diagnostic et éventuellement procéder à la résection d'excroissances tumorales (néoplasies) si celles ci s'avèrent malignes. La taille de ces excroissances constitue une information essentielle a leurs diagnostics mais elles s'avèrent difficile à estimer pour le praticien qui ne dispose pas de l'information d'échelle de l'organe exploré. Les paramètres du système optique monofocale des flexoscope sont fixes et l'équipement est difficilement modifiable pour envisager l'intégration de méthodes actives de mesures. Cette étude de faisabilité propose une procédure permettant l'estimation de l'échelle des scènes coloscopiques basée sur l'estimation de la fonction de transfert du système optique du flexoscope par quantification du flou.

LanguageFrench
ConferenceReconnaissance des Formes et Intelligence Artificielle 2012
Proceedings TitleRFIA 2012 (Reconnaissance des Formes et Intelligence Artificielle)
ISBN9782953951523
PublisherHAL Open Science
Publication dates
Online2012
Publication process dates
Accepted2012
Deposited28 Feb 2024
Output statusPublished
Web address (URL)https://hal.science/hal-00656530v1
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