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Abstract #4482

Evaluation of Myocardial Eulerian Strain Using Bandpass Optical Flow. Comparison to Harmonic Phase Imaging

Azza Hassanein 1 , Ayman Khalifa 1 , and El-Sayed H. Ibrahim 2

1 Helwan University, Cairo, Egypt, 2 University of Michigan, Ann Arbor, MI, United States

HARP is a commonly used technique for analyzing tagged images. Nevertheless, HARP tracking of the material points fails near the myocardial boundaries. Band-Pass Optical Flow (BPOF) is a motion analysis technique that, similar to HARP, is based on k-space analysis, but enforces optical flow constraints, which could provide a remedy to the HARP limitation. The purpose of this work is to use BPOF for calculating strain from tagged images, and compare the results to HARP at different myocardial regions based on numerical phantom and in-vivo images. The results show that BPOF is superior to HARP in tracking boundary taglines.

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