Abstract #4257
A Real Asymmetric Fourier Imaging (Real-AFI) with preserving phase polarity for Inversion-prepared Spin-echo based-Sequence
Tokunori Kimura 1 , Mitsukazu Kamata 1 , and Takashi Shigeta 1
1
MRI Systems Development Department, Toshiba
Medical Systems, Otawara, Tochigi, Japan
We proposed and assessed a new partial Fourier technique
named RealAFI where the phase polarity can be preserved
for inversion-prepared and Spin-Echo based imaging. 1D
simulation and 3T double IR (DIR) proton density
black-blood FSE (DIR-BB-FSE) with TI of shorter than
nulled blood Mz were assesed here. POCS method for
RealAFI was used modifying phase estimation; i.e., the
back-ground phase was calculated from circular low-pass
filtered data in k-space region that is smaller than the
actually sampled. RealAFI provided almost comprable
results as those from fully sampled data. RealAFI is
practically useful technique for inversion-prepared
spin-echo based imaging.
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