ULTRASOUND SYSTEM FOR FLOW MEASUREMENT

摘要

An ultrasonic transducer (30) is rotated until the displayed vessel (2) has the smallest area. The transducer is then tilted to various angles with respect to a normal, to a surface (20a), to obtain area and velocity measurements of fluid flow inside a vessel (2) in a body imaged. A least mean square error calculation is then performed to find the area and velocity that will minimize such error. The product of these two quantities is the estimated flow.