Enhanced spectral selectivity for steady-state free precession imaging
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United States of America Patent
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Nov 11, 2008
Grant Date -
Nov 6, 2008
app pub date -
May 4, 2007
filing date -
May 4, 2007
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Abstract
A method of collecting image data with selective spectral suppression for at least two species is provided. A sequence of RF excitation pulses is repeatedly applied, whereby a repeated sequence of at least two substantially different spectrally selective steady-state magnetizations is established. Magnetic gradients are applied between said RF pulses. A plurality of magnetic resonance image (MRI) signals is acquired. The plurality of MRI signals is combined using a weighted combination where the weights depend on a control parameter that adjusts a trade-off between selective spectral suppression and signal-to-noise ratio (SNR).
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