Partitioning of the Magnetization into Configurations
In earlier chapters we considered the motion of the total magnetization vector under the influence of RF pulses and gradient fields. The \(\overrightarrow k \) plane (or \(\overrightarrow k \) space in the case of 3D scans) was used to describe the different scan methods. By finding the path through the \(\overrightarrow k \) space, much of the properties of a scan method and its fundamental artifacts, like those due to T 2 or T*2 decay and resonance offset, could be explained. In this chapter it will be shown that additional information can be obtained by looking at the partitioning of the magnetization vector in “configurations” (or “base states” or “coherences” ), characterized by their dephasing state.
KeywordsFlip Angle Excitation Pulse Magnetization Vector Transverse Magnetization Longitudinal Magnetization
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