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.