Patent ID: 11896422
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A method of calculating a pulse wave velocity, the method comprising:
generating, using a single sensor, a plurality of intravascular ultrasonic pulses at a pulse origin, wherein the plurality of intravascular ultrasonic pulses are directed along a vessel;
for each of the plurality of intravascular ultrasonic pulses, receiving a plurality of echoes from a plurality of distances relative to the pulse origin, using the single sensor;
obtaining a first ultrasound Doppler signal from a first distance relative to the pulse origin based on a plurality of echoes;
identifying a change in velocity at the first distance based on the first ultrasound Doppler signal;
obtaining a second ultrasound Doppler signal relative to a second distance from the pulse origin based on the plurality of echoes;
identifying the change in velocity at the second distance based on the second ultrasound Doppler signal;
determining a time delay based on the change in velocity at the first distance and the change in velocity at the second distance, wherein the time delay corresponds to a time for the change in velocity to propagate from the first distance to the second distance;
calculating a pulse wave velocity based on the time delay; and
outputting the pulse wave velocity to a display.