A system (1) for dynamic augmented reality imaging of an anatomical site (C), comprising at least one image capturing device (2) for capturing first real-time images (3) of the anatomical site (C), at least one display device to display devices (4) for displaying the first images (3) captured by the device (2), storage means (7) for storing at least one second anatomical image (6) of the site (C) and an electronic device (8) comprising a controller (9) configured to receive and process the images (3, 6). The controller (9) is configured to have the display image (4) to display an augmented reality image (11) obtained by superimposing the images (3, 6) on the first image (3) by identifying common reference elements (12) of the images (3, 6), and the common reference elements (12) are identified automatically by the controller (9) or manually by a healthcare professional (D). The second image (6) is a 3D image and is composed of portions of fan beam or cone beam computed tomography (CBCT) or magnetic resonance images depicting internal structures of the anatomical site (C). The augmented reality image (11) is clipped to the site (C) by means of the elements (12), irrespective of the spatial position of the electronic device (8) as the latter is being moved relative to the site (C).L'invention porte sur un système (1) servant à l'imagerie de réalité augmentée dynamique d'un site anatomique (C), comprenant au moins un dispositif de capture d'image (2) servant à capturer des premières images en temps réel (3) du site anatomique (C), au moins un dispositif d'affichage permettant d'afficher des dispositifs (4) servant à afficher les premières images (3) capturées par le dispositif (2), des moyens de stockage (7) servant à stocker au moins une seconde image anatomique (6) du site (C) et un dispositif électronique (8) comprenant un dispositif de commande (9) conçu afin de recevoir et traiter les images (3, 6). Le dispositif de commande (9) est conçu afin de faire en sorte qu