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Abstract #1538

Self-calibrated gradient delay correction for golden angle radial MRI

David S Smith 1,2 and E Brian Welch 1,2

1 Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States, 2 Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States

We present a model for k-space trajectory shifts due to independent timing delays in gradient channels. We use this model to successfully detect and correct for gradient delays in 3D golden angle radial MRI data without the need for additional data collection, calibration, or hardware measurements. The method can also be used for 2D radial or other non-Cartesian trajectories with only slight modifications.

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