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Abstract #1267

Comparison of Black-Blood Magneization Preparation Techniques for 3D Vessel Wall Imaging in the Lower Extremities

Keigo Kawaji1,2, Thanh D. Nguyen2, Beatriu Reig2, Pascal Spincemaille2, Martin R. Prince2, Yi Wang1,2

1Biomedical Engineering, Cornell University, Ithaca, NY, United States; 2Radiology, Weill Cornell Medical College, New York, NY, United States

This work compared the performance of four black-blood magnetization preparation techniques [double inversion recovery (DIR), spatial presaturation of upstream blood (SpSat), motion-sensitizing magnetization preparation (MSprep), and T2prep inversion recovery (T2prep-IR)] in suppressing blood signal in a 3D balanced steady-state free precession MRA of the lower extremity. In 11 volunteers, the proximal popliteal was imaged at 1.5-Tesla with the four magnetization preparation techniques. Both MSprep and T2prep-IR provided global blood suppression and vessel wall visualization across a 3D volume, while upstream blood nulled by DIR and SpSat did not travel across the entire 3D volume.