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.
Trahey, GE; Hubbard, SM; von Ramm, OT
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