Aortic Pulse Wave Velocity
Aortic Pulse Wave Velocity - Related Videos
08:07
Ultrasound-based Pulse Wave Velocity Evaluation in Mice
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Cited by 25 •
2017
Arterial stiffness represents a key factor in cardiovascular disease and pulse wave velocity (PWV) can be considered as a surrogate index for arterial stiffness. This protocol describes an image processing algorithm for calculating PWV in mice based on ultrasound image processing that is applicable at different arterial sites.
06:08
Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
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Cited by 11 •
2014
Pulse wave velocity (PWV) measurement assesses arterial stiffness by a tonometry-based system that measures the speed with which arterial pressure wave travels along the arterial tree, typically approximating the time that it takes this wave to travel from the descending aorta (using the carotid artery as a surrogate) to the femoral artery. Carotid-femoral PWV increases two- to threefold across the adult lifespan.
05:51
Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
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Cited by 20 •
2018
This protocol describes a method to standardize the measurements of carotid-femoral pulse wave velocity to evaluate arterial stiffness.
00:51
Velocity and Acceleration of a Wave
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2025
A wave propagates through a medium with a constant speed, known as a wave velocity. It is different from the speed of the particles of the medium, which is not constant. In addition, the velocity of the medium is perpendicular to the velocity of the wave. The variable speed of the particles of the medium implies that there must be acceleration associated with it. The velocity of the particles can be obtained by taking the partial derivative of the position equation with respect to time. We can...
09:32
Measurement of Pulse Propagation Velocity, Distensibility and Strain in an Abdominal Aortic Aneurysm Mouse Model
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Cited by 10 •
2020
This manuscript describes a detailed protocol for using high frequency ultrasound imaging to measure luminal diameter, pulse propagation velocity, distensibility and radial strain on a mouse model of abdominal aortic aneurysm.
FAQs
The key relationship is mechanical: stiffer aortic walls transmit the pressure disturbance generated by each heartbeat more rapidly. A higher velocity therefore serves as an indirect signal of reduced arterial compliance rather than simply reflecting how strongly the heart contracts. This relationship makes the measurement useful for studying changes in vascular health and aging.
The calculation combines two measurements: the distance between the selected measurement sites and the time required for the pressure wave to travel between them. Dividing distance by transit time produces the velocity. A shorter travel time across the same distance yields a higher value, which is interpreted in relation to aortic wall stiffness.
Aortic pulse wave velocity helps connect vascular aging with changes in arterial stiffness. Because stiffening causes pressure waves to travel faster, the measurement can provide an indirect view of how the aorta changes over time. In medical research, this supports evaluation of vascular health and investigation of cardiovascular risk associated with aging.
Hypertension is one clinical context in which aortic pulse wave velocity can help evaluate vascular condition. The measurement adds information about arterial stiffness to the assessment of blood pressure-related vascular health. It can therefore support studies examining how hypertension relates to cardiovascular risk, although the velocity value is an indirect vascular measure rather than a blood pressure reading.
A basic measurement requires identifying two sites along the arterial pathway, determining the distance between them, and recording the pressure wave's transit time from one site to the other. Because the approach is noninvasive, it can be used to assess arterial stiffness without directly entering the artery. The resulting distance-to-time calculation provides the velocity.
Researchers can measure aortic pulse wave velocity at different points during a study and compare the results over time. Changes in the value may indicate changes in arterial stiffness, allowing investigators to examine whether medications or lifestyle interventions influence vascular health. This longitudinal use is especially valuable when assessing cardiovascular effects beyond a single clinical observation.