AUTOCORRELATION OF INTEGRATED POWER DOPPLER SIGNALS AND ITS APPLICATION

The integrated power Doppler signal arising from blood flow is a rando m process, In this article, a general approach to model this random pr ocess is studied, Both the theoretical and experimental results show t hat the temporal autocorrelation function of the integrated power Dopp ler signals is directly related to properties of the insonified medium , such as the scattering strengths and velocities of all moving scatte rers, and as well as the properties of the Doppler imaging system, suc h as the point spread function (psf) of the power Doppler images, Some initial experiments are performed to test the proposed model, Its pot ential application for flow measurement, such as perfusion evaluation, is also discussed. Copyright (C) 1996 World Federation for Ultrasound in Medicine & Biology