Gradient Delay Correction for FSE-MRI

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Abstract:

In this paper, the impact of the gradient delay and its anisotropy on FSE-MRI was studied. It is shown by experiments that FSE imaging sequence is sensitive to uncorrected gradient delay. A simple correction method of this problem is proposed, in which the delay of the gradient waveform is compensated by shifting the gradient waveform directly. We have demonstrated that the proposed method is effective to overcome the image quality degradation cause by the gradient delay. The correction does not depend on specific samples or subjects and total delay can be used without recalibrating in each scan.

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Periodical:

Advanced Materials Research (Volumes 718-720)

Pages:

641-644

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Online since:

July 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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