2D PC-MRI with 3D Flow Encoding acquisitions Only (FEsO) for Accurate Slice Orientation-Independent Blood Flow Measurement
Da Wang 1,2 and Peng Hu 1,2
Department of Radiological Sciences, David
Geffen School of Medicine, University of California Los
Angeles, Los Angeles, California, United States,
Physics Interdepartmental Graduate Program, University
of California Los Angeles, Los Angeles, California,
Phase-contrast MRI (PC-MRI) is a well-established
technique for quantification of blood flow and velocity.
Quite often, for through-plane Flow Encoding (FE) 2D
dynamic PC-MRI, the imaging slice may not be
perpendicular to the blood vessel of interest and result
in underestimation of peak velocity. Three-directional
FE acquisitions may mitigate the underestimation but
necessitate a lower temporal-resolution. We assume that
the blood flow velocity direction does not change
significantly between adjacent cardiac phases. We
propose a fast 2D dynamic PC-MRI technique by using a
constrain term of velocity direction to calculate flow
compensation data using three-directional FE
acquisitions Only (FEsO).
This abstract and the presentation materials are available to members only;
a login is required.