Abstract
Diffusion can be also studied with the aid of gradients of the RF amplitude, B1, instead of B0 gradients considered up to now. Several experimental procedures have been suggested on this basis [55, 81, 131, 216, 249]. In the following, a B1- gradient method for diffusion and flow measurements will be delineated which is entirely analogous to the above real-space evaluation scheme for B0-gradient diffusometry. The principle is to prepare a magnetization grid and then, after a certain displacement interval, to image the modified grid [249]. This magnetizationgrid rotating-frame imaging (MAGROFI) technique is a pure magnetization pattern generation/imaging procedure.
Keywords
Coil Geometry Preparation Pulse Evolution Interval Reading Pulse Probe Coil
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Notes
- 1.Note that no spin echo or double-pulse excitation are employed in this case. The B0 gradients are therefore irrelevant for the diffusion measurement.Google Scholar
- 2.Carrying this option to the extreme should even make it possible to cover at one time the whole kp range needed for a diffusion measurement.Google Scholar
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© Springer-Verlag Berlin Heidelberg 1997