Correlated displacement-T2 MRI by means of a Pulsed Field Gradient-Multi Spin Echo Method.

摘要: A method for correlated displacement-T2 imaging is presented. Pulsed Field Gradient-Multi Spin Echo (PFG-MSE) sequence used to record T2 resolved propagators on a voxel-by-voxel basis, making it possible perform single voxel analyses. In spatially heterogeneous media the thus gives access sub-voxel information about displacement and relaxation. The demonstrated using number of flow conducting model systems: tube with flowing water variable intrinsic T2's, mixing fluids different T2's in an "X"-shaped connector, intact living plant. PFG-MSE can be applied yield relation between flow, pore size exchange behavior, aid volume quantification by correct relaxation during labeling period Delta PFG methods. Correlated special interest research subjects, such as liquids mixtures or solids moving through microscopic conduits sizes (e.g., plants, porous media, bioreactors, biomats).