Marcus T. Alley1, Philip J. Beatty2,
Albert Hsiao1, Shreyas S. Vasanawala1
1Radiology, Stanford University,
Stanford, CA, United States; 2MR Applied Science Lab, GE
Healthcare, Menlo Park, CA, United States
Time-resolved
3-dimensional phase-contrast MR imaging (3D-PC MRI) has developed as an
active area of research for vascular imaging.
In general however the clinical adoption of this approach for routine
vascular imaging has been hampered by the long acquisition times inherent in
the technique (on the order of 10-20 minutes). Several groups have addressed this issue by
using parallel imaging to accelerate data acquisition in one dimension, and
in this work we demonstrate the ability to perform auto-calibrated parallel
imaging in both the in-plane and slice directions to reduce the overall scan
time to the order of several minutes.