Method and apparatus for lesion localization, definition and...

A - Human Necessities – 61 – B

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A61B 8/08 (2006.01) A61N 5/10 (2006.01) A61B 5/055 (2006.01) A61B 6/03 (2006.01) G01T 1/164 (2006.01)

Patent

CA 2416887

A method and apparatus for lesion or organ definition for the purpose of radiation treatment planning localization and treatment position verification. The apparatus uses a combination of an ultrasound imaging system and a diagnostic imaging system to acquire localization ultrasound images referenced in the coordinate space of the diagnostic imaging system through the use of a position sensing system. The method compares the location of the lesion in the localization ultrasound images with the position of the lesion in ultrasound images taken while the patient lies on the treatment table of a therapy treatment unit, suggests corrective measures to place the lesion in its intended treatment position and executes the correction upon confirmation from qualified personnel.

Cette invention se rapporte à un procédé et à un appareil servant à la définition de lésions ou d'organes, en vue de localiser un plan de traitement par rayonnement et de vérifier la position du traitement. Cet appareil utilise en association un système d'imagerie ultrasonore et un système d'imagerie diagnostique, en vue d'acquérir des images ultrasonores de localisation référencées dans l'espace des coordonnées du système d'imagerie diagnostique, par utilisation d'un système de détection de position. Ce procédé compare la position de la lésion dans les images ultrasonores de localisation avec la position de la lésion dans les images ultrasonores prises pendant que le patient est étendu sur la table de traitement d'une unité thérapeutique, il propose des mesures correctrices pour placer la lésion dans sa position de traitement voulue et il effectue la correction après confirmation par du personnel qualifié.

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