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Abstract #4188

Auto-calibrated simultaneous multiband cardiac GRE cine MRI at 5 Tesla

Yuan Zheng1, Lele Zhao2, Zhongqi Zhang2, Yu Ding1, and Jian Xu1
1UIH America, Inc., Houston, TX, United States, 2United Imaging Healthcare, Shanghai, China

GRE sequences benefits from increased SNR at high field and do not suffer from banding artifacts and SAR issues as bSSFP sequences, which makes it a good alternative for some applications that typically use bSSFP at 1.5 T or 3T. We have implemented the autocalibrated multiband GRE cardiac cine sequence at 5 T. The autocalibrated multiband acquisition increases the scan efficiency by reducing the scan time and simplifying the multiband imaging workflow. Iterative reconstruction with sparsity constraints was used which can also accommodate in-plane undersampling. We have evaluated this application on volunteers and achieved cardiac cine images with satisfactory quality.

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