Device to enhance visibility of needle or catheter tip at color Doppler US.

Cockburn, J F; Cosgrove, D O · Radiology · 1995

basic_science · Level V

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Abstract

The authors tested a device that allows the tip of a needle to be visualized at color Doppler ultrasonography. The device directs an oscillating air column through a 0.016-inch inner-diameter hollow stylet, creating movement at only the needle tip. The movement is reliably and accurately displayed as a beacon of color at depths of 15 cm in vitro.

Medical subject headings