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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Magn Reson Med. 2009 Dec;62(6):1466–1476. doi: 10.1002/mrm.22100

Figure 8.

Figure 8

K-space trajectory deviations appear to vary approximately linearly with gradient amplitude, as shown here by subtracting nominal waveforms from the measured waveform for several gradient amplitudes. The k-space trajectory deviation is showed as a percentage deviation from the desired trajectory for several gradient amplitudes. As the deviation waveforms have a shape that is similar to the gradient waveform (black dotted line), it is apparent that they the deviations are predominantly due to a gradient delay rather than eddy currents.