Abstract: A method for determining the positioning in deployed position of an expandable medical device type implant, including, from a three-dimensional image of a region of interest including the vascular structure, the following steps: determination of a centreline of the vascular structure, positioning of the IMD according to an initial position, around the centreline, simulation of the final position of the IMD after deployment, as a function of the stresses exerted by the walls of the vascular structure on the IMD, the determination of the centreline consisting in placing points so as to minimise a travel time of fluid along said points between an input point and an output point, the simulation of the final position of the IMD taking account of a level of longitudinal push-pull intended to be applied to the IMD during its implantation.

Abstract: The invention relates to an intra-aneurysm device (1) for treating an aneurysm (2), comprising a woven structure (S), with meshes made of a plurality of yarns, the woven structure (S) comprising a head (5) intended to be inserted into the aneurysm (2), the head (5) being capable of significantly reducing a blood flow in the aneurysm (2), said head (5) being dome-shaped, the device (1) being characterised in that the woven structure (S) comprises, at a proximal end of said woven structure (S) a knot (4a) connected to the head (5) and in that, at its distal end opposite the proximal end, the head (5) is formed from yarn ends (6a), at least some of which are mechanically connected one another.

Abstract: Intra-aneurysmal device (1) for the treatment of an aneurysm (2), this device (1) comprising: a stent (3) with an approximately circular section with diameter (D1), the stent (3) being suitable for and designed to anchor the device (1) in an artery, a head (5) designed to be inserted in the aneurysm (2), the head (5) being capable of significantly reducing blood flow in the aneurysm (2), an intermediate portion (4) located between the head (5) and the stent (3), and connecting the head (5) to the stent (3), wherein the intermediate portion (4) is in the form of an ellipsoid, of which a distal end (11) is connected to the head (5) and a proximal end (12) is connected to the stent (3).

Abstract: A method and a system automatically evaluate the volume of penumbra mismatch during an exam. The method includes performing a magnetic resonance (MR) diffusion-weighted imaging of the brain for acquiring native diffusion images of brain slices. A MR perfusion-weighted imaging of the brain is performed for acquiring native perfusion images of the brain slices. For each brain slice, b0 native diffusion image of the brain slice are segmented to create a contour mask. For each brain slice, a necrosis and cerebrospinal fluid mask (hereafter NC mask) is created from an ADC map of the brain slice. The contour mask and the NC mask of a same slice are fused. For each brain slice, all native perfusion images acquired for the slice are aligned with the NC mask obtained for the slice and the NC mask is fused with each native perfusion image for obtaining a perfusion image.

Abstract: A method and a system automatically evaluate the volume of penumbra mismatch during an exam. The method includes performing a magnetic resonance (MR) diffusion-weighted imaging of the brain for acquiring native diffusion images of brain slices. A MR perfusion-weighted imaging of the brain is performed for acquiring native perfusion images of the brain slices. For each brain slice, b0 native diffusion image of the brain slice are segmented to create a contour mask. For each brain slice, a necrosis and cerebrospinal fluid mask (hereafter NC mask) is created from an ADC map of the brain slice. The contour mask and the NC mask of a same slice are fused. For each brain slice, all native perfusion images acquired for the slice are aligned with the NC mask obtained for the slice and the NC mask is fused with each native perfusion image for obtaining a perfusion image.