Flow Ultrasound Scattering Color Flow Velocity Imaging System and Method and Target Object Volume Three Dimensional Imaging System and Method

摘要

The present invention is directed to an apparatus and method for aliasing aliasing that occurs when imaging fluid or tissue flowing using velocity Doppler shift data. To eliminate minor aliasing effects in the speed mode, a symmetric (or non-directional) speed / color map is used that maps the same amount of positive and negative speed data to the same color and same display intensity. By adjusting this pulse repetition frequency so that only negligible aliasing is present, optimal frame averaging of the data can be achieved by removing the sign of the velocity data during or before frame averaging.