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R. Objectif and L. 'évaluation-par-tomodensitométrie, TDM) des mesures de l'anneau aortique avant implantation d'une valve aortique par voie percutanée (TAVI) est cruciale. Nos objectifs étaient d'analyser la variabilité intra et inter-observateur du sizing de l'anneau aortique en TDM et d'évaluer l'influence de l'expérience de l'observateur