Abstract

A synthetic focus ultrasound system is described in which individual transducer elements are activated to insonify the image field and the resultant echoes are received by a plurality of elements of the array. The echo signals are stored and the complete echo set is used to produce motion maps for different velocity vectors over the image field. Various ones of the motion maps are used to produce a wide variety of ultrasound image modes, including grey-scale images, colorflow images, and spectral flow displays.

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