Abstract #2465
An adaptive phase recovery method for 4D phase-contrast MRI
Rizwan Ahmad 1 , Ning Jin 2 , Yu Ding 3 , and Orlando P Simonetti 3
1
Electrical Engineering, The Ohio State
University, Columbus, OH, United States,
2
Siemens
Healthcare, Columbus, OH, United States,
3
Internal
Medicine, The Ohio State University, Columbus, OH,
United States
The purpose of this work is to develop a new approach to
deriving blood velocity estimates from phase-contrast
MRI data. Different directional components of velocity
may have different temporal frequency contents.
Traditional linear methods treat all velocity components
equally, i.e., they assign equal bandwidth to each
component even when the true frequency contents of the
components are widely different. To overcome this
limitation, we propose an adaptive formulation, where
the bandwidth of each velocity component is adapted
based on a current estimate of its temporal frequency
contents, leading to improved temporal resolution and
reduced artifacts.
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