Temporal Dynamics and Sampling Rate Effects for Background Phase Estimates in 4D Flow MRI
Michael Loecher1, Peng Hu1, and Daniel B Ennis1,2
1Department of Radiological Sciences, University of California, Los Angeles, CA, United States, 2Biomedical Physics, University of California, Los Angeles, CA, United States
4D Flow phase contrast MRI acquisitions inherently require a measure of
background phase to remove phase contributions from non-velocity based
components. The temporal dynamics of
this background phase are not well understood. Consequently, the background phase may be
measured too infrequently or too often for accurate and/or time efficient measurements.
The purpose of this work was: 1) to measure the temporal dynamics of the
background phase with high temporal resolution; and 2) to demonstrate methods
of selecting time optimal background phase sampling strategies that improve the
measurement efficiency of 4D Flow acquisitions.
This abstract and the presentation materials are available to members only;
a login is required.