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MRI cardiac tagging using a sinc-modulated RF pulse train.

Ed X Wu·Christopher W Towe·Haiying Tang
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Abstract

A method of spatial modulation of magnetization using the RF pulse train is described for improved cardiac tagging. The method is based on a sinc-modulated RF pulse train in the presence of constant gradient. Such an RF pulse train yields a rectangular profile of saturated magnetization, and the bandwidth of the sinc envelope controls the width of the saturation tag. Compared to DANTE and SPAMM tagging techniques, this method offers sharper-edged tags and the ability to change the ratio of tag width to tag separation. The approach was implemented on a 9.4 T vertical bore NMR system and demonstrated with both phantom and in vivo mouse heart studies.

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Ed X Wu, Christopher W Towe, Haiying Tang. 2002. MRI cardiac tagging using a sinc-modulated RF pulse train.. https://doi.org/10.1002/mrm.10190

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