Systems and methods for providing radiation therapy and...

A - Human Necessities – 61 – B

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A61B 5/00 (2006.01) A61B 8/00 (2006.01) A61B 8/12 (2006.01) A61N 1/30 (2006.01) A61N 5/10 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2319580

A system and method for the prevention of restenosis use a source of radiation to treat the blood vessel. An intravascular ultrasound imaging system (12) generates images of a treatment volume from within the blood vessel. A computer based treatment planner (20) acquires the images from the imaging system (12), and reconstructs a three-dimensional image of the treatment volume. From a dose prescription (28), the treatment planner (20) calculates which optimize the dose, and also registers the dose with images of the treatment volume. A voice recognition unit (36) allows medical personnel to provide voice commands for operating the system. The treatment planner (20) and imaging system (12) may be placed within a cath-lab, and enables the treatment plan to be dynamically changed based on patient specific information. A catheter guide (220) comprising markers (224, 226, 228, 225) allows medical personnel to determine the precise orientation of the imaging transducer, and location of the transducer along a length of the catheter guide (220).

L'invention concerne un système et un procédé de prévention d'une resténose grâce à l'utilisation d'une source de rayonnement pour traiter le vaisseau sanguin. Un système intravasculaire de formation d'images ultrasonores (12) génère des images d'un volume de traitement à partir de l'intérieur du vaisseau sanguin. Un planificateur de traitement (20) sur la base d'un ordinateur acquiert les images provenant du système de formation d'images (12), et reconstitue une image tridimensionnelle du volume de traitement. A partir d'une prescription de dose (28), le planificateur de traitement (20) calcule et optimise la dose, et enregistre également la dose avec des images du volume de traitement. Une unité de reconnaissance vocale (36) permet au personnel médical de commander le système par des commandes vocales. Le planificateur de traitement (20) et le système de formation d'images (12) peuvent être placés à l'intérieur d'un laboratoire de cathétérisme et permettent de changer de manière dynamique le plan de traitement sur la base des informations spécifiques sur le patient. Un guide de cathéter (220) comprenant des marqueurs (224, 226, 228, 225) permet au personnel médical de déterminer l'orientation précise du transducteur de formation d'images et l'emplacement du transducteur le long du guide de cathéter (220).

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