Cone-beam computed tomography with a flat-panel imager

Details Cone-beam computed tomography with a flat-panel imager Cone-beam computed tomography with a flat-panel imager

A - Human Necessities

61

N

A61N 5/10 (2006.01) A61B 6/00 (2006.01) A61B 6/03 (2006.01)

Patent

CA 2400406

A radiation therapy system that includes a radiation source (409) that moves about a path and directs a beam of radiation towards an object and a cone-beam computer tomography system (400). The cone-beam computer tomography system includes an x-ray source (402) that emits an x-ray beam in a cone-beam form towards an object to be imaged and an amorphous silicon flat-panel imager (404) receiving x-rays after they pass through the object, the imager providing an image of the object. A computer is connected to the radiation source and the cone beam computerized tomography system, wherein the computer receives the image of the object and based on the image sends a signal to the radiation source that controls the path of the radiation source.

L'invention concerne un système de thérapie par rayonnement qui comprend un source de rayonnement se déplaçant le long d'un trajet et dirigeant un faisceau de rayons vers un objet ainsi qu'un système de tomographie informatisé à faisceau conique. Le système de tomographie informatisé comprend une source de rayons X qui émet un faisceau de rayons X en forme de cône en direction d'un objet dont on veut obtenir l'image et un imageur à panneau plat en silicium amorphe qui reçoit les rayons X une fois qu'ils ont traversé l'objet; l'imageur crée une image de l'objet. Un ordinateur est connecté à la source de rayonnement et au système de tomographie informatisé à faisceau conique. L'ordinateur reçoit l'image de l'objet et, sur la base de cette image, envoie un signal à la source de rayonnement qui commande la voie de la source de rayonnement.

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