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Abstract #1828

3D SPACE Arterial Wall Imaging with Prospective Self-Gating for Motion Compensation

Zhaoyang Fan1,2, Sven Zuehlsdorff3, Peng Lai1,2, Peter Weale3, Yiucho Chung3, Debiao Li1,2

1Radiology, Northwestern University, Chicago, IL, USA; 2Biomedical Engineering, Northwestern University, Evanston, IL, USA; 3Siemens Medical Solutions USA, Inc., Chicago, IL, USA

3D carotid wall imaging is prone to image artifacts caused by motion such as swallowing. In this work, we investigated the use of a self-gating method in a 3D variable-flip-angle TSE (SPACE) acquisition and implemented real-time motion detection and data acceptance or rejection. The feasibility was demonstrated at 3.0T in volunteers who was instructed to voluntarily swallow. Further evaluation of the effectiveness of this method in practical MRI is warranted. In addition, self-gating may have the potential to be combined with other 3D acquisition such as SSFP.