Related Experiment Video

Updated: Aug 15, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
10:46

Doppler Optical Coherence Tomography of Retinal Circulation

Published on: September 18, 2012

Estimation of axial blood velocity using the Doppler equation corrected for broadening

Y Chabria, V L Newhouse

    Ultrasound in Medicine & Biology
    |January 1, 1997
    PubMed

    More Related Videos

    Ultrasound-based Pulse Wave Velocity Evaluation in Mice08:07

    Ultrasound-based Pulse Wave Velocity Evaluation in Mice

    Published on: February 14, 2017

    Blood Flow Imaging with Ultrafast Doppler05:57

    Blood Flow Imaging with Ultrafast Doppler

    Published on: October 14, 2020

    Related Concept Videos

    Doppler Effect - I00:56

    Doppler Effect - I

    The Doppler effect and Doppler shift were named after the Austrian physicist and mathematician Christian Johann Doppler in 1842, who conducted experiments with both moving sources and moving observers. Consider an observer standing on a street corner, observing an ambulance with a siren sound passing by at a constant speed. The observer experiences two characteristic changes in the sound of the siren. Initially, the sound increases in loudness as the ambulance approaches and decreases in...
    Doppler Effect - II01:05

    Doppler Effect - II

    The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...
    Equipments Used To Measure Blood Pressure01:30

    Equipments Used To Measure Blood Pressure

    Direct Method
    This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
    Assessing Blood pressure using a doppler ultrasound01:19

    Assessing Blood pressure using a doppler ultrasound

    To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
    Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
    Preparation of Equipment:
    Deriving the Speed of Sound in a Liquid01:09

    Deriving the Speed of Sound in a Liquid

    As with waves on a string, the speed of sound or a mechanical wave in a fluid depends on the fluid's elastic modulus and inertia. The two relevant physical quantities are the bulk modulus and the density of the material. Indeed, it turns out that the relationship between speed and the bulk modulus and density in fluids is the same as that between the speed and the Young's modulus and density in solids.
    The speed of sound in fluids can be derived by considering a mechanical wave propagating...
    Applications of Integration to Find Blood Flow01:27

    Applications of Integration to Find Blood Flow

    Blood flow through a cylindrical blood vessel can be mathematically described using the principles of laminar flow, a regime in which fluid moves smoothly in parallel layers. In this model, the velocity of the blood is not uniform across the cross-section of the vessel; rather, it varies with the radial distance from the center. The maximum velocity occurs along the central axis, decreasing progressively toward the vessel walls, where it reaches zero due to viscous drag.Approximating Blood...