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Abstract #3898

Non-Contrast-Enhanced Flow-Independent 3D Peripheral Angiography with Sliding Interleaved Concentric Cylinders

MAGNA25Kie Tae Kwon1, Holden H. Wu1, 2, Taehoon Shin1, Adam B. Kerr1, Dwight G. Nishimura1, Jean H. Brittain3

1Electrical Engineering, Stanford University, Stanford, CA, United States; 2Cardiovascular Medicine, Stanford University, Stanford, CA, United States; 3MR Global Applied Science Laboratory, GE Healthcare, Madison, WI, United States

Non-contrast-enhanced flow-independent angiography (FIA) exploits intrinsic tissue parameters such as T1, T2 and chemical shift, and thereby generates stable vessel contrast even under slow-flow conditions in the lower extremities. Magnetization-prepared 3D SSFP sequences have been of interest for FIA, but an important challenge with these sequences is artery-vein contrast. In this work, a variation of SLINKY (Sliding Interleaved ky) acquisition was incorporated into a 3D concentric cylinders SSFP FIA sequence to improve artery-vein contrast in the lower extremities by suppressing the venous signal while retaining an arterial flow-independent approach.