Abstract #1681
A hybrid multi-spectral approach for near metal imaging: combining the best of phase and frequency encoding
Jetse S. van Gorp 1 , Chris J.G. Bakker 1 , and Peter R. Seevinck 1
1
Image Sciences Institute, University Medical
Center Utrecht, Utrecht, Netherlands
In this work the feasibility of a new hybrid
multi-spectral method is investigated using two
orthopedic implants. The method combines on-resonance
frequency encoded with off-resonance reduced field of
view fully phase encoded images, to exploit the
efficiency of frequency encoding and the geometrical
accuracy of phase encoding. Hybrid images were compared
to MAVRIC-type images, showing that the hybrid method
was able to improve the image quality adjacent to metal
implants. Large excitation bandwidths and a reduced
field-of-view could be used for the phase encoded
images, decreasing the number of necessary off-resonance
acquisitions and reducing the acquisition time compared
to solely phase encoded imaging.
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