Parallel imaging in non-cartesian magnetic resonance imaging (MRI) and MRI apparatus realizing the same
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United States of America Patent
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Jun 26, 2012
Grant Date -
Feb 18, 2010
app pub date -
Mar 3, 2008
filing date -
Mar 9, 2007
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Abstract
An MRI apparatus capable of performing a high-speed operation for removing aliasing from the data measured by non-Cartesian imaging in a real space with a small amount of operation is provided. Non-Cartesian data sampling is performed by thinning the number of data by using multiple receiver coils having different sensitivity distribution from each other. Image reconstruction means creates orthogonal data by gridding non-orthogonal data obtained by each receiver coil on a grid having an equal spatial resolution to and a narrower field of view than a target image, subjects it to Fourier transform and creates the first image data containing aliasing components. The second image data is created by using the first image data created for each receiver coil and a sensitivity distribution of each receiver coil.
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