Deriving a velocity encoding anti-aliasing limit to prevent aliasing and achieve an adequate signal-to-noise ratio in phase contrast magnetic resonance imaging
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United States of America Patent
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Jun 25, 2013
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Jun 25, 2009
app pub date -
Nov 25, 2008
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Nov 30, 2007
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Abstract
Methods and systems are described for optimizing particular protocol parameters used in phase contrast magnetic resonance (PCMR) imaging. Optimal settings for PCMR protocol parameters such as coordinates, field of view (FOV), frequency/phase encoding lines, number of excitations (NEX), slice thickness, views per segment (VPS), and coil setting may be determined based upon the cut position/orientation of an image containing a vessel of interest, vessel size, length of the vessel segment, and heart rate. An optimal velocity encoding gradient (VENC) for PCMR may also be determined that both avoids aliasing and ensures an adequate signal-to-noise ratio.
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