Visualization of blood flow by ultrasound speckle interferometry

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Abstract
A new method for the visualization of flowing liquids is suggested. The method makes it possible to obtain images of dynamic objects located in an inhomogeneous medium. The main requirement for the realization of this method is the stability of the field during two successive measurements. The dimensions of the irradiating beam depend on the value of the spatial correlation interval characterizing the inhomogeneities of the medium, while the amplitude distribution in the beam can be arbitrary. A numerical modeling of the method is performed, and images of the models of blood vessels lying under an inhomogeneous layer are presented.

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