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Ultrasonic elastography is an imaging technique providing information about the relative stiffness of biological tissues. In general, elastography suffers from noise artifacts, which degrade lesion detectability and increase the likelihood of misdiagnosis. This paper proposes a method called transmit- side frequency compounding for elastography (TSFC). Beamforming is modified to transmit frames with...
This paper presents a real-time sensor-less ultrasound 3D motion estimation algorithm. The out-of-plane motion of the ultrasound probe could be obtained by the decorrelation of the speckle pattern in ultrasound b-scan frames. The algorithm uses SAD as the indication of decorrelation to obtain the motion of the frame. To improve the accuracy in scans of real-tissue, an adaptive curve correction method...
Ultrasound elastography has been well applied in medical detection as a tool to aid diagnosis. However, in conventional ultrasound elastograms, there are patterned artifacts from non-white estimation errors. In this paper, we investigate spatial angular compounding methods to reduce the errors. The method involves averaging ultrasound angular elastograms around the same region-of-interest but from...
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