Abstract:High-volume-rate ultrasound imaging enables the rendering of complex flow dynamics in 3-D; however, high data rates pose significant hurdles towards real-time implementation. A sparsely populated 256-element 2-D spiral array coupled with unfocused transmissions is a potential solution to these challenges. This work analyzes the impact of sparse element distribution on flow velocity estimation with spherical waves (virtual point source 20mm behind the probe) to extend the field of view beyond the array footprin… Show more
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