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Abstract #2520

Inversion-Recovery-Prepared Sliding Interleaved Cylinder (SLINCY) Imaging

Kie Tae Kwon 1 , Bob S Hu 2 , and Dwight G Nishimura 1

1 Electrical Engineering, Stanford University, Stanford, CA, United States, 2 Palo Alto Medical Foundation, Palo Alto, CA, United States

A sliding interleaved cylinder (SLINCY) acquisition employs a 3D concentric cylinders trajectory as the readout instead of a 3DFT sequence. Previously, SLINCY was incorporated into a non-contrast-enhanced magnetization-prepared 3D SSFP sequence to improve artery-vein contrast in the lower extremities. However, one of remaining issues for this approach is to suppress the long-T1 fluids, which can otherwise hamper the depiction of arterial blood in SSFP images. In this work, we exploited the thin-slab-scan nature of SLINCY to efficiently add inversion-recovery (IR) to suppress the fluids. We demonstrated that the proposed IR schemes are feasible for SLINCY, which successfully suppressed the fluids.

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