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.