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Abstract #4012

The efficacy of existing k-space correction methods for 2D golden angle radial sampling on clinical 1.5T and 3T systems

Tom Bruijnen1, Bjorn Stemkens1, Jan J. W. Lagendijk1, Cornelis A. T. van den Berg1, and Rob H. N. Tijssen1

1Center for image sciences, University Medical Center Utrecht, Utrecht, Netherlands

Golden angle radial acquisitions are sensitive to gradient imperfections leading to reduced image quality. Multiple methods are known to compensate for the zeroth and first order gradient waveform imperfections. Here we quantify the effect of these different methods on Philips 1.5T and 3T wide bore Ingenia scanners, and assess four direct correction methods on efficacy. We show that on these systems a gradient delay correction has minimal impact on the image quality, while phase correction provides a considerable improvement.

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