Myocardial perfusion imaging with an interleaved multi-slice acquisition for steady-state readout without saturation preparation or gating
Haonan Wang 1 , Neal Kepler Bangerter 1,2 , Ganesh Adluru 2 , Meredith Ireene Taylor 1 , and Edward V.R DiBella 2
Department of Electrical & Computer
Engineering, Brigham Young University, Provo, UT, United
Center for Advanced Imaging Research, University of
Utah, UT, United States
First-pass myocardial perfusion imaging is a powerful
method for characterizing ischemic heart disease.
Standard methods use saturation preparation and an ECG
trigger. A new ungated acquisition with no saturation
preparation could be used to acquire steady-state
spoiled gradient echo (SPGR) images. Here, readouts from
multiple (three) slices are interleaved in order to keep
the multiple slices at steady-state and increase the
effective TR. Simulations, phantoms, and human data are
used to compare the interleaved acquisition to a
conventional saturation recovery sequence both in radial
and Cartesian trajectories.
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