Patent ID: 8177719

Claim:
A method for imaging motion of a contrast agent with ultrasound, the method comprising: transmitting a contrast pulse sequence (CPS) in a first order along a scan line; filtering samples of a receive contrast pulse sequence, for the scan line, responsive to the transmit contrast pulse sequence, the samples of the receive contrast pulse sequence being received in a second order the same as the first order, reordering the received contrast pulse sequence such that a third order of the samples, different from the second order, is generated and is input for the filtering, the filtering outputting a cubic fundamental of a first ultrasound signal; (a) obtaining an estimate of velocity of a first contrast agent as a function of the cubic fundamental of the first ultrasound signal, the obtaining performed for each of a plurality of spatial locations and by calculating a correlation of multiple values at the cubic fundamental; (b) obtaining an estimate of energy of a second contrast agent as a function of a cubic fundamental of a second ultrasound signal, the obtaining performed for each of the plurality of spatial locations and by calculating the correlation of the multiple values at the cubic fundamental; and (c) generating an image as a function of both the velocity and energy estimates, the image representing the spatial locations.