System and method for performing pulse wave propagation velocity measurement

摘要

The present invention provides a system and method for calculating a pulse wave velocity based on multiple intravascular ultrasound pulses guided along a blood vessel.For each ultrasonic pulse, a plurality of echoes are received from a plurality of distances along a blood vessel.A first ultrasonic Doppler signal is received from the first point from the pulse origin, and the second ultrasonic Doppler signal is received from the second point from the pulse origin.The first and second flow velocities are obtained based on the first and second ultrasonic Doppler signals, respectively.The pulse wave propagation velocity is calculated based on the time delay based on the first flow metric and the second flow metric.