Systems and method for performing pulse wave velocity measurements
AssigneeKoninklijke Philips N.V.
InventorsMaarten Petrus Joseph Kuenen, Arjen Van Der Horst
Life of this patent
Estimating the term…
Abstract
The invention provides a system and a method for calculating a pulse wave velocity based on a plurality of intravascular ultrasonic pulses directed along a vessel. For each ultrasonic pulse, a plurality of echoes is received from a plurality of distances along the vessel. A first ultrasound Doppler signal is received from a first distance from the pulse origin and a second ultrasound Doppler signal from a second distance from the pulse origin. A first and second flow velocity metric is obtained based on the first and second ultrasound Doppler signal, respectively. The pulse wave velocity is calculated based on the time delay, which is based on the first flow velocity metric and the second flow velocity metric.
Claims9
An apparatus, comprising:
- an intravascular catheter or guidewire configured to be positioned within a blood vessel of a patient and comprising only one sensor, wherein the only one sensor is configured to:
- transmit a plurality of intravascular ultrasonic pulses;
- and
- receive a plurality of echoes associated with the plurality of intravascular ultrasonic pulses, wherein the plurality of echoes is obtained from a first location relative to a pulse origin and a second location relative to the pulse origin;
- and
- a processor configured to:
- calculate a pulse wave velocity based on operation of the only one sensor;
- and
- provide, to a display, an output based on the pulse wave velocity.
Dependencies are inferred from the claim text.