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Autocorrection of 3D MR images for motion artifacts

  • US 6,307,369 B1
  • Filed: 07/12/2000
  • Issued: 10/23/2001
  • Est. Priority Date: 07/12/2000
  • Status: Active Grant
First Claim
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1. A method for autocorrecting a three-dimensional magnetic resonance data set for motion that occurs during its acquisition, the steps comprising:

  • Fourier transforming the three-dimensional magnetic resonance data set along a first axis to produce a first hybrid 3D data set;

    extracting a two-dimensional array of data from the first hybrid 3D data set which lies in a plane perpendicular to the first axis;

    producing phase corrections by performing an autocorrection process on the extracted two-dimensional array of data;

    phase correcting the three-dimensional magnetic resonance data set by correcting the phase of samples in each 2D plane therein which is perpendicular to the first axis with the corresponding phase corrections; and

    reconstructing an image by performing a Fourier transformation on the corrected three-dimensional magnetic resonance data set.

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