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Field of view increase in magnetic resonance imaging using nonlinear gradients and generalized iterative reconstruction

  • US 10,459,051 B2
  • Filed: 01/05/2017
  • Issued: 10/29/2019
  • Est. Priority Date: 01/05/2017
  • Status: Active Grant
First Claim
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1. A method for increasing field of view (FOV) in magnetic resonance imaging, the method comprising:

  • determining linear field gradients of associated with a gradient coil of a magnetic resonance (MR) scanner;

    using the MR scanner to acquire a k-space dataset representative of a patient using a plurality of readout gradient amplitudes;

    generating an extended FOV image based on the k-space dataset using an iterative reconstruction process that applies a forward model to convert the k-space data set to image space, wherein the forward model incorporates a measurement of gradient distortion as a deviation from the linear field gradients.

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