Method for compensating for effects of object motion in mri

Details Method for compensating for effects of object motion in mri Method for compensating for effects of object motion in mri

G - Physics

06

T

G06T 11/00 (2006.01) G01R 33/565 (2006.01) G01R 33/567 (2006.01)

Patent

CA 2468803

A method for compensation for object motion during a scan, especially an magnetic resonance imaging (MRI) scan is provided. The method involves taking a first data set corresponding to a first focussed image and adding a number of data points to form a slightly higher resolution image. Possible motions can then be modelled on the added data points and the effect on the focussing of the slightly higher resolution image determined using appropriate focus criteria.

L'invention concerne un procédé qui permet de corriger le mouvement d'un objet pendant un balayage, en particulier un balayage en imagerie par résonance magnétique (IRM). Le procédé consiste à mettre en oeuvre un premier ensemble de données correspondant à une première image mise au point; puis à ajouter un certain nombre de points de données, afin de former une image à résolution légèrement supérieure. Des mouvements possibles peuvent alors être modélisés sur les points de données ajoutés, et l'effet de la mise au point de l'image à résolution légèrement supérieure déterminé selon des critères de mise au point appropriés.

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