A method for ultrasound flow imaging includes transmitting a set of transmission beams through a region of interest having a plurality of spatial locations. The method further includes generating demodulated data in response to the set of transmission beams. Further, the method includes obtaining a plurality of wave-number vectors and location response data corresponding to each spatial location. Moreover, the method includes determining a plurality of Doppler frequency values based on the location response data and determining a flow vector for each spatial location based on the plurality of Doppler frequency values and the plurality of wave-number vectors. The method also includes generating a flow vector image based on the flow vectors corresponding to the plurality of spatial locations within the region of interest, where the flow vector image is representative of a magnitude and direction of blood flow in the region of interest.
