An ultrasound imaging system and methods of imaging using...

A - Human Necessities – 61 – B

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A61B 8/00 (2006.01) A61B 5/06 (2006.01) G06T 7/00 (2006.01)

Patent

CA 2553885

A method of registering the position of an object moving in a target volume in an ultrasound imaging system includes capturing a first ultrasound image of a target volume. A second ultrasound image of the target volume is then captured after the capturing of the first ultrasound image. The position of the object in the target volume is identified using differences detected between the first and second ultrasound images. In another aspect, a region of interest in the target volume is determined. A segment of an operational scan range of a transducer of the ultrasound imaging system encompassing the region of interest is determined. The transducer is focused on the segment of the operational scan range during image capture.

L'invention concerne un procédé permettant d'enregistrer la position d'un objet se déplaçant dans un volume cible dans un système d'imagerie par ultrasons, consistant à saisir une première image ultrasonore d'un volume cible. Ensuite, une seconde image ultrasonore du volume cible est saisie après que la première image ultrasonore a été saisie. La position de l'objet dans le volume cible est identifiée à partir des différences détectées entre la première et la seconde image ultrasonore. Dans un autre aspect de l'invention, le procédé consiste à déterminer une région étudiée dans le volume cible. Dans ce procédé, un segment d'une plage de balayage opérationnelle d'un transducteur du système d'imagerie par ultrasons contenant la région étudiée est déterminé. Le transducteur est orienté vers le segment de la plage de balayage opérationnelle durant la saisie de l'image.

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