Blood Flow Computation in Phase-Contrast MRI by Minimal Paths in Anisotropic Media

Fast marching method Marching cubes
DOI: 10.1007/978-3-642-23623-5_55 Publication Date: 2011-09-20T06:02:44Z
ABSTRACT
In this paper, anisotropic Fast Marching is employed to compute blood flow trajectories as minimal paths in 3D phase-contrast MRI images. Uncertainty in the estimated blood flow vectors is incorporated in a tensor which is used as metric for the anisotropic Fast Marching. A flow connectivity distribution is computed simultaneously to the Fast Marching. Based on the connectivity distribution the most likely flow trajectories can be identified. Results are presented for several PC MRI data sets and the capability of the method to indicate uncertainty of the flow trajectories is shown.
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