Methods To observe the CCTS of metal exotic body in different part in 33 patient using color Doppler flow imaging and two dimensional imaging.

• 方法应用彩色多普勒技术和二维声像,观察33例不同部位各类金属异物的彩尾征。结果10例四肢与躯干内手术钢针、钢板后方彩尾征显示率100%25;