[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Hartley, 1995 - Google Patents

Doppler measurement of acoustic streaming

Hartley, 1995

Document ID
10553749560028315703
Author
Hartley C
Publication year
Publication venue
1995 IEEE Ultrasonics Symposium. Proceedings. An International Symposium

External Links

Snippet

To characterize acoustic streaming caused by pulsed ultrasonic beams we used Doppler signal processing to measure streaming velocity under a variety of conditions in-vitro using blood and water. We found velocities as high as 5 mm/s in blood at the diagnostic power …
Continue reading at ieeexplore.ieee.org (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02818—Density, viscosity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/024—Mixtures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by measuring frequency, phaseshift, or propagation time of electro-magnetic or other waves, e.g. ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details

Similar Documents

Publication Publication Date Title
De Jong et al. Ultrasound scattering properties of Albunex microspheres
US6205848B1 (en) Method and equipment for the characterization of suspensions
Fairbank et al. A new noninvasive technique for cardiac pressure measurement: resonant scattering of ultrasound from bubbles
Christopher et al. A high-frequency pulsed-wave Doppler ultrasound system for the detection and imaging of blood flow in the microcirculation
JPH0570769B2 (en)
Hartley Characteristics of acoustic streaming created and measured by pulsed Doppler ultrasound
ES489802A1 (en) Device for the non-invasive measurement of the state of microcirculating blood flow.
US3443433A (en) Flowmeter
Morgan et al. The effect of the phase of transmission on contrast agent echoes
Zauhar et al. Studies of acoustic streaming in biological fluids with an ultrasound Doppler technique.
Kondo et al. New tissue mimicking materials for ultrasound phantoms
Bradley III et al. The velocity of ultrasound in human blood under varying physiologic parameters
Wu et al. Cyclic variation of Doppler power from whole blood under pulsatile flow
Holland et al. Frequency-dependent attenuation effects in pulsed Doppler ultrasound: Experimental results
Hartley Doppler measurement of acoustic streaming
Evans et al. A new approach to the noninvasive measurement of cardiac output using an annular array Doppler technique—II. Practical implementation and results
Dymling et al. A new ultrasonic method for fluid property measurements
Morris et al. The resolution of the ultrasound pulsed Doppler for blood velocity measurements
Holm et al. Modelling of the ultrasound return from Albunex microspheres
Cloutier et al. Experimental evaluation of intrinsic and nonstationary ultrasonic Doppler spectral broadening in steady and pulsatile flow loop models
Hills et al. Evaluation of ultrasonic bubble detectors in vitro using calibrated microbubbles at selected velocities
CN107655969A (en) A kind of acoustic contrast agent absorption coefficient measuring method
Tortoli et al. Flow imaging with pulsed Doppler ultrasound and flow phantoms
Holland et al. The acoustic field of a pulsed Doppler diagnostic ultrasound system near a pressure‐release surface
Sachs et al. A two-beam acoustic system for tissue analysis