Patent ID: 9551770
Date: 2017-01-24
CPC Classifications: G01R

Claim:
1. A method comprising: (a) placing an object to be imaged in a substantially uniform non-zero magnetic field B (b) with the object positioned in the magnetic field B (c) during at least a portion of each repetition cycle of the pulse sequence, applying to the object a non-zero modulating field gradient; (d) detecting and recording steady-state spin echo or gradient echo signals for multiple repetition cycles of the pulse sequence; and (e) extracting from the recorded steady-state echo signals a steady-state signal magnitude or a steady-state signal phase for each voxel of a complex-valued image of the object, wherein: (f) repetition time T (g) the modulating field gradient imparts spatial modulation of the steady-state signal phase and magnitude across the complex-valued image of the object along the direction of the modulating field gradient.