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Device to enhance visibility of needle or catheter tip at color Doppler US
1Department of Diagnostic Radiology, Royal Postgraduate Medical School, Hammersmith Hospital, London, England.
Radiology
|May 1, 1995
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.