An ultrasound imaging system (100) includes a transducer array (102). The transducer array includes a first set of transducer elements (206 or 208, 302 or 304) and a second set of transducer elements (208 or 206, 304 or 302). The first and second sets of transducer elements includes long axes and are angularly offset from each other by a non-zero angle with respect to the long axes. The ultrasound imaging system further includes a velocity processor (120) that processes echoes received by the first and second sets of transducer elements and determines an axial and two transverse flow velocity components based on the received echoes.