Displacement encoding with stimulated echoes (DENSE) measures myocardial displacements using the signal phase. Phase wrapping generally occurs during systolic phases, thus spatiotemporal phase unwrapping algorithms are required to compute motion trajectories and strain. Current DENSE analysis methods are aided by user-defined myocardial contours. A fully automatic DENSE analysis method is proposed where phase predictions using multiple pathways and region growing are used to simultaneously unwrap and segment the myocardium. Compared to a prior automatic method, this method selects fewer extramyocardial pixels, reducing the computation time, and has a greater phase unwrapping success rate.
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