Quarles & Brady LLP
Magnetic resonance fingerprinting with steady state precession (MRF-FISP)
Example embodiments associated with NMR fingerprinting are described. One example NMR apparatus includes an NMR logic that repetitively and variably samples a (k, t, E) space associated with an object to acquire a set of NMR signals that are associated with different points in the (k, t, E) space. Sampling is performed with t and/or E varying in a non-constant way. Sampling is performed in response to a fast imaging with steady state free precession (MRF-FISP) pulse sequence having an unbalanced gradient that dephases transverse magnetization. The NMR apparatus may also include a signal logic that produces an NMR signal evolution from the NMR signals, and a characterization logic that characterizes a resonant species in the object as a result of comparing acquired signals to reference signals. The unbalanced gradient in the MRF-FISP pulse sequence reduces sensitivity to B0 in homogeneity.
Case Western Reserve University
G G G G G A A G A G A A G A G G A G G A
G06T G06T G01R G01R G01R A61B A61B G01R A61B G01R A61B A61B G01R A61B G01R G01R A61B G01R G01R A61B
additional additional additional additional inventional additional inventional inventional inventional inventional inventional additional inventional additional inventional inventional additional inventional additional additional
Yun Mark Dan
Jiang Griswold Ma