McArdle A, Newhouse V L, Beach K W
Computer Sciences Corporation (CSC), Horsham, PA 19044, USA.
Ultrasound Med Biol. 1995;21(5):679-92. doi: 10.1016/0301-5629(94)00153-5.
A method of performing three-dimensional (3-D) velocity vector estimation with two transducers is demonstrated on a flow phantom using the Doppler spectra's mean frequencies and bandwidths. The results are compared with 3-D vector estimates computed from Doppler mean frequencies obtained with a five-transducer system. It is shown that the two-transducer vector Doppler system which uses bandwidth can improve on the accuracy of a three-transducer vector Doppler system which relies only on Doppler mean frequencies.
利用多普勒频谱的平均频率和带宽，在流动模型上展示了一种使用两个换能器进行三维（3-D）速度矢量估计的方法。将结果与用五换能器系统获得的多普勒平均频率计算出的三维矢量估计值进行了比较。结果表明，使用带宽的双换能器矢量多普勒系统可以提高仅依赖多普勒平均频率的三换能器矢量多普勒系统的准确性。
