Determination of shim coil current value for shimming in magnetic resonance imaging apparatus
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United States of America Patent
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Feb 24, 2015
Grant Date -
Aug 30, 2012
app pub date -
Feb 23, 2012
filing date -
Feb 24, 2011
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Abstract
In a magnetic resonance imaging apparatus according to an embodiment, a measuring unit moves a couchtop on which a subject is placed to at least one position of a plurality of positions in an imaging space, adjusts shim coil current value supplied to the shim coil, and measures first shim coil current value when a static magnetic field is uniformized. On the basis of the first shim coil current value and at least one of subject information and an imaging condition, a calculator calculates second shim coil current value position of the plurality of positions and at which the measuring unit has measured no shim coil current value.
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