4 dimensional magnetic resonance imaging

G - Physics – 01 – R

Patent

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G01R 33/48 (2006.01) G01R 33/54 (2006.01) G01R 33/56 (2006.01)

Patent

CA 2418111

Provided are apparatus and methods for forming a multidimensional image of inanimate or animate objects which utilize a magnetization source (112) to magnetize a volume of an object to be imaged, a radiation source (118) for applying a radiation field to the object to be imaged, an output signal detector (120) for producing output signals in response to the secondary radiation at a plurality of spatial locations outside of the object as a function of time, processors (126, 126a and 126b) for determining a plurality of Fourier components, for associating the Fourier components due to each voxel (14) by phase, and for converting each set of components into a voxel location, and an image processor (128) for producing an image.

L'invention concerne un appareil et des procédés permettant de former une image multidimensionnelle d'objets inanimés ou animés, et dans lesquels sont utilisés une source (112) de magnétisation permettant de magnétiser le volume d'un objet à mettre en image, une source (118) de rayonnement servant à appliquer un champ de rayonnement à l'objet à mettre en image, un détecteur (120) de signaux de sortie destiné à générer des signaux de sortie en réponse à un rayonnement secondaire sur plusieurs emplacements en dehors de l'objet en fonction du temps, des processeurs (126, 126a et 126b) servant à déterminer plusieurs composants de Fourier, afin d'associer les composants de Fourier à chaque voxel (14) par phase et de convertir chaque ensemble de composants en un emplacement de voxel, et un processeur (128) d'image servant à générer une image.

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