Method for locating brain lesion

G - Physics – 06 – K

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G06K 9/00 (2006.01) A61B 5/05 (2006.01)

Patent

CA 2613056

A surgeon utilizes a brain scan image to locate a brain lesion (14) and to plan the operation to treat it. Distance measurements representing the location of the lesion (14) are derived from various views of a brain scan image. In the operating room, he transfers these distance measurements onto the patient's cranium (22) in a'warped' or curvilinear Cartesian coordinate system defined by intersecting orthogonal lines extending along the surface of the patient's cranium (22). As a result, the lesion (14) is localized and the surgeon may establish the appropriate location and orientation of a bone flap to be used to access the lesion.

Un chirurgien utilise une image du cerveau obtenue par balayage afin de localiser une lésion cérébrale (14) et d'organiser l'opération permettant de traiter cette lésion. Des mesures de distance représentant la position de la lésion (14) sont obtenues à partir de diverses vues d'une image du cerveau obtenue par balayage. Dans le bloc opératoire, le chirurgien transfert ces mesures de distance sur le crâne (22) du patient dans un système de coordonnées cartésiennes curvilinéaires ou "gauchies" définies par des lignes orthogonales d'intersection s'étendant le long de la surface du crâne (22) du patient. Ainsi, la lésion (14) peut être localisée et le chirurgien peut fixer l'orientation et la position appropriées d'un volet osseux devant être utilisé pour accéder à la lésion.

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