Recent developments in cardiac multiband CAIPIRINHA with autocalibration allow the simultaneous acquisition and reconstruction of multiple slices in one breathhold. Nevertheless, applications such as high resolution multi-slice cine imaging, and multi-slice three-directional velocity encoding of the myocardium, are still hindered by excessive breathhold duration.
In this study, we combine autocalibrated multiband CAIPIRINHA with k-t-acceleration to substantially accelerate data acquisition. When applied to gradient-echo and phase-contrast imaging, our technique allowed cardiac cine acquisitions at high spatial resolution (1.1mm), and three-directional velocity encoding of the myocardium, to be acquired in one breath-hold of 18 heart-beats at 2 or 3 slices, simultaneously.
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