Device to enhance visibility of needle or catheter tip at color Doppler US.
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.
Cockburn
J F
JF
Department of Diagnostic Radiology, Royal Postgraduate Medical School, Hammersmith Hospital, London, England.
Cosgrove
D O
DO
D002404:Catheterization / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008961:Models, Structural; D009339:Needles; D018615:Ultrasonography, Doppler, Color / Q000295:instrumentation* / Q000379:methods