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Navigator echo motion artifact suppression in synthetic aperture ultrasound imaging

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3 Author(s)
Kadah, Y.M. ; Biomed. Eng. Dept., Cairo Univ., Giza, Egypt ; El-Sharkawy, A.E.-M. ; Youssef, A.-B.M.

We develop a simple yet effective technique for motion artifact suppression in ultrasound images reconstructed from multiple acquisitions. Assuming a rigid-body motion model, a navigator echo is computed for each acquisition and then registered to estimate the motion in between acquisitions. By detecting this motion, it is possible to compensate for it in the reconstruction step to obtain images that are free of lateral motion artifacts. The theory and practical implementation details are described and the performance is analyzed using computer simulations as well as real data. The results indicate the potential of the new method for real-time implementation in lower cost ultrasound imaging systems.

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Biomedical Engineering, IEEE Transactions on  (Volume:52 ,  Issue: 1 )