Improving Detection of Micron Size Magnetic Particles using Linear Phase Ramps

Stephen J. Dodd¹, Gary Zabow¹, James P. Sumner¹, Alan P. Koretsky¹

The contrast from micron size magnetic particles is dependent on the position within a voxel under certain imaging conditions. It is shown that the contrast maybe adjusted and improved with application of linear phase ramps in k-space to give sub-voxel image shifts. This technique will provide improved quantification of particle distributions for cell tracking experiments.