[A Doppler ultrasound device for determining blood volume flow].

A novel ultrasonic quantitative Doppler procedure has been developed which allows for the measurement of real-time volume flow in large blood vessels. It makes use of a 2D array transducer, which enables parallel sampling of a measuring slice placed in normal position to the sound beam. With this arrangement, volume flow can be computed without measuring the angle of incidence. Moreover, the 2D velocity distribution can be assessed within intervals of 10 to 30 ms.