Multi-Direction Guidance Motion Tracking for Real-Time Ultrasound Strain Imaging

The axial- and the lateral- guidance motion tracking are efficient approaches for real-time strain imaging; however, they are suffering from error propagation. This paper introduces a novel multi-direction guidance (MDG) motion tracking algorithm which selects higher quality previous estimations from multi-directions as seed displacement of the next estimated location. Experiment results show that this presented algorithm can efficiently avoid error propagation and obtain much higher strain signal-to-noise ratio (SNRe) than that from the axial and lateral guidance.