Department of Radiology, Section of Ultrasound, Rigshospitalet, Copenhagen, Denmark.
Ultraschall Med. 2011 Apr;32(2):213-5. doi: 10.1055/s-0031-1274628. Epub 2011 Apr 21.
With conventional Doppler ultrasound it is not possible to estimate direction and velocity of blood flow, when the angle of insonation exceeds 60-70°. Transverse oscillation is an angle independent vector velocity technique which is now implemented on a conventional ultrasound scanner. In this paper a few of the possibilities with transverse oscillation are demonstrated.
在传统的多普勒超声中，当入射角超过 60-70°时，无法估计血流的方向和速度。横向振动是一种角度独立的向量速度技术，现在已在常规超声扫描仪上实现。本文展示了横向振动的一些可能性。
