Probe-correlated viewing of anatomical image data

A - Human Necessities – 61 – B

Patent

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A61B 5/055 (2006.01) A61B 1/04 (2006.01) A61B 5/11 (2006.01) G06F 19/00 (2006.01) G06T 1/00 (2006.01) G06T 17/00 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2003497

A computerized system for viewing of internal anatomical regions of a patient based on previously acquired image data of the patient. The anatomical regions are viewed in direct relationship to a moving probe which can be hand-held. The location of the probe relative to the patient is reported to computer. The computer then uses the previously acquired image data to generate a desired view of the patient's anatomy in relationship to the position or orientation of the probe. An operator is able to visualize normally invisible anatomical features before commencing, and during, procedure. The correspondence between positions of the patient's anatomy is to locations on the stored data images is determined through an initialization procedure which can be repeated or refined between viewing operations. The system may be employed during diagnostic, therapeutic, or surgical procedures.

Système informatisé permettant de visualiser les régions anatomiques internes d'un patient au moyen de données d'imagerie acquises antérieurement sur ce patient. Les régions anatomiques peuvent être visualisées directement au moyen d'une sonde mobile manuelle. L'emplacement de la sonde par rapport au patient est communiquée à l'ordinateur. L'ordinateur utilise ensuite les données d'imagerie acquises antérieurement pour produire l'aspect souhaité de l'anatomie du patient en rapport avec l'emplacement ou l'orientation de la sonde. L'opérateur est en mesure de visualiser des caractéristiques anatomiques normalement invisibles avant le début et pendant l'intervention. La correspondance entre les positions de l'anatomie du patient et les emplacements sur les images emmagasinées est déterminée au moyen d'une procédure d'initialisation qui peut être répétée ou raffinée entre les opérations de visualisation. Le système peut être utilisé dans le cadre d'interventions diagnostiques, thérapeutiques ou chirurgicales.

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