Résumé
La haute définition, après s’être démocratisée dans les foyers hexagonaux, envahit le monde médical et en particulier l’endoscopie digestive. Derrière une norme industrielle nécessitant une résolution horizontale d’au moins 720 lignes, se cachent de grandes variations de résolutions selon les résolutions horizontales et verticales mais aussi le mode de balayage. L’endoscopie HD ne se limite pas à l’utilisation d’un endoscope HD mais impose d’évoluer dans un environnement complètement HD onéreux, justifiant la nécessité de preuves scientifiques établies. Les diverses publications sur l’endoscopie HD seule ou couplée aux dernières techniques de rehaussement des muqueuses (zoom, NBI, FICE, ISCAN) sont discordantes mais ne montrent pas pour l’instant de supériorité par rapport à l’endoscopie standard dans le dépistage des lésions prénéoplasiques.
Abstract
High definition is currently often present in American homes. What’s up about its use in medical world and in particular in digestive endoscopy? The general consensus definition of a HD image or display is one with more than 720 lines of resolution (height). Behind this definition hides a high resolution variation due to number of pixels itself (represented by horizontal and vertical resolution) but to type of scan too. To provide a true HD image, each component of the system (endoscope CCD chip, processor, monitor and transmission cables) must be HD compatible, which is of course very expansive and justify scientific demonstration. A lot of scientific publications about HD endoscopy with or without endoscopic modalities relative to mucosal enhancement techniques have not demonstrated an improvement in detection of early neoplastia or dysplasia.
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Jacques, J., Sautereau, D. Endoscopie haute définition. Acta Endosc 39, 452–457 (2009). https://doi.org/10.1007/s10190-009-0120-1
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DOI: https://doi.org/10.1007/s10190-009-0120-1