Abstract #4513
Velocity Selective Prepared Non-Contrast Enhanced MR Angiography using Phase Sensitive Reconstruction
Xinzeng Wang 1 , Joshua S Greer 1,2 , Shu Zhang 1 , and Ananth J Madhuranthakam 1,3
1
Radiology, UT Southwestern Medical Center,
Dallas, Texas, United States,
2
Bioengineering,
UT Dallas, Dallas, Texas, United States,
3
Advanced
Imaging Research Center, UT Southwestern Medical Center,
Dallas, Texas, United States
Velocity selective preparation (VSP) allows non-contrast
enhanced MR angiography with minimal background signal
in a single acquisition. However, the empirical velocity
encoding used with VSP leads to venous signal
contamination. In this work, we present a phase
sensitive reconstruction combined with VSP that can
determine the flow direction and can potentially
differentiate arterial and venous signal with background
signal suppression in a single acquisition. The proposed
method successfully determined the flow direction in a
flow phantom with good background suppression. The phase
sensitive reconstruction also determined the flow
direction in the popliteal artery of the lower leg in
normal volunteers.
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