Magnetic microstructures for magnetic resonance imaging

Details Magnetic microstructures for magnetic resonance imaging Magnetic microstructures for magnetic resonance imaging

A - Human Necessities

61

K

A61K 49/18 (2006.01) B81C 1/00 (2006.01) C23C 14/00 (2006.01) G01R 33/28 (2006.01) G11B 5/31 (2006.01) G01R 33/563 (2006.01) G03F 7/00 (2006.01) H01F 10/00 (2006.01)

Patent

CA 2721797

A magnetic resonance contrast agent has a medium, and a contrast structure dispersed in the medium. The contrast structure comprises a magnetic material arranged to create a local region of a local magnetic field such that nuclear magnetic moments of a material when arranged within said local region precess at a characteristic Larmor frequency about a total magnetic field in the local region while in use, the characteristic Larmor frequency being identifiable with the contrast structure, and the total magnetic field in the local region being a substantially spatially uniform magnetic field.

Un agent de contraste de résonance magnétique est composé dun milieu et dune structure de contraste dispersée dans le milieu. La structure de contraste comprend un matériau magnétique arrangé pour créer une région locale dun champ magnétique local de telle manière que les moments magnétiques nucléaires dun matériau lorsquil est arrangé au sein de ladite région locale sont animés dun mouvement de précession à une fréquence de Larmor caractéristique environ un champ magnétique total dans la région locale alors quil est en utilisation, la fréquence de Larmor caractéristique étant identifiable avec la structure de contraste, et le champ magnétique total dans la région locale étant un champ magnétique sensiblement spatialement uniforme.

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