Patent ID: 9084820
Filing Date: 2015-07-21
Classification: A61B,A61K,G01R,H01F

Abstract:
1. A magnetic resonance contrast agent, comprising: a medium; and a contrast structure dispersed in said medium, wherein said contrast structure comprises a magnetic material arranged as a pair of solid disk-shaped magnetic components defining a fixed space between a circular surface of each disk shape, wherein the centers of the circular surfaces of the disk shapes are arranged along a same axis normal to the circular surfaces, and wherein the circular surfaces are parallel to each other, wherein the fixed space creates a spatially extended region contained within a near-field region of the contrast structure over which an applied magnetic field results in a homogenous field, such that nuclear magnetic moments of a second material when arranged within said spatially extended region precess at a characteristic Larmor frequency, whereby the magnetic resonance contrast agent is adapted to emit a characteristic magnetic resonance signal of the magnetic material.