Cockburn J F, Cosgrove D O
Department of Diagnostic Radiology, Royal Postgraduate Medical School, Hammersmith Hospital, London, England.
Radiology. 1995 May;195(2):570-2. doi: 10.1148/radiology.195.2.7724786.
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.
作者测试了一种能在彩色多普勒超声检查中使针尖可视化的设备。该设备通过一根内径为0.016英寸的空心管心针引导振荡气柱，仅使针尖产生运动。在体外15厘米深处，这种运动能可靠且准确地显示为一个彩色信号。
