Angle independent ultrasonic blood flow detection by frame-to-frame correlation of B-mode images.

We have previously reported initial clinical results of a novel blood velocity imaging technique utilizing a two-dimensional correlation search applied to consecutively acquired echoes. In this paper, we describe both the physical principles underlying this technique and test tank experiments which define its performance under a variety of conditions. The results indicate that, unlike Doppler flow imaging systems, this technique defines the flow velocity vector in two dimensions and is not subject to aliasing.

Duke Scholars

Author Gregg E. Trahey Biomedical Engineering

Author Olaf T. Von Ramm Biomedical Engineering