Passive movement of a patient within a magnetic resonance...

A - Human Necessities – 61 – B

Patent

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Details

A61B 5/055 (2006.01) A61B 5/11 (2006.01)

Patent

CA 2480641

The invention relates to a device for producing a passive movement of an object and/or part of the body of a patient in a magnetic resonance tomograph comprising a rest (14, 17) which is used to support at least one part of the body (19), for example a joint, of a patient, and can be introduced into the channel (38) of a magnetic resonance tomograph together with a patient bed (35) or the like. According to the invention, the rest (14, 17) can be pivoted about at least one axis (33, 34) inside the channel (38) of the magnetic resonance tomograph in a motor-driven manner. The components of the rest (14, 17) and the drive thereof located inside the channel (38) of the magnetic resonance tomograph consist of non-ferromagnetic materials in order to prevent the creation of image artifacts. The invention also relates to a method for producing (image) records during the passive movement of objects in a magnetic resonance tomograph.

Dispositif permettant de produire un mouvement passif d'un objet et / ou d'une partie du corps d'un patient dans un tomographe à résonance magnétique, qui comporte un support (14, 17) destiné à soutenir au moins une partie (19) du corps, par ex. une articulation d'un patient, pouvant être introduit avec un lit (35) pour patient ou analogue dans le canal (38) d'un tomographe à résonance magnétique. Selon la présente invention, le support (14, 17), entraîné par un moteur, peut pivoter à l'intérieur du canal (38) du tomographe autour d'au moins un axe (33, 34). Les composants du support (14, 17) et de son dispositif d'entraînement se trouvant à l'intérieur du canal (38) du tomographe à résonance magnétique sont constitués de matières non ferromagnétiques pour empêcher l'apparition d'artéfacts d'images. La présente invention concerne en outre un procédé de production d'images lors du mouvement passif d'objets dans un tomographe à résonance magnétique.

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