Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[Quantitative evaluation of aortic stenosis using continuous wave Doppler].

W L Zhu

    Zhonghua Xin Xue Guan Bing Za Zhi
    |February 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    [Protective effect and mechanism of hyperbaric oxygen therapy on non-alcoholic fatty liver disease in mice].

    Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology·2025
    Same author

    [Estimation of COVID-19 incidence in Shanghai under optimized epidemic prevention and control strategies].

    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2023
    Same author

    [Observational study on perioperative outcomes of pelvic exenteration].

    Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery·2023
    Same author

    Broadband photoresponse arising from photo-bolometric effect in quasi-one-dimensional Ta<sub>2</sub>Ni<sub>3</sub>Se<sub>8</sub>.

    Journal of physics. Condensed matter : an Institute of Physics journal·2022
    Same author

    [A model analysis on the knowledge-attitude-practice of children guardians in Jiangxi, Shanghai and Qinghai].

    Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2021
    Same author

    [Research and application of assessment tools for Residents' Nutrition Literacy].

    Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2020

    Continuous Wave (CW) Doppler effectively assesses aortic stenosis severity. This method showed strong correlation with left-heart catheterization in measuring pressure gradients, proving its value.

    Area of Science:

    • Cardiovascular Medicine
    • Diagnostic Imaging
    • Echocardiography

    Background:

    • Aortic stenosis (AS) is a significant valvular heart disease.
    • Accurate assessment of AS severity is crucial for patient management.
    • Traditional methods like left-heart catheterization are invasive.

    Purpose of the Study:

    • To evaluate the utility of 2D and Doppler echocardiography in diagnosing aortic stenosis.
    • To compare pressure gradients measured by Continuous Wave (CW) Doppler with left-heart catheterization data.
    • To determine the correlation between echocardiographic and catheterization-derived pressure gradients in patients with suspected AS.

    Main Methods:

    • Thirteen patients with suspected aortic stenosis underwent left-heart catheterization and 2D/Doppler echocardiography.

    Related Experiment Videos

  • Echocardiography assessed aortic valve morphology (thickness, motion).
  • Left ventricular and aortic pressures were measured simultaneously during catheterization; pressure gradients and aortic velocity were obtained using CW Doppler and the Bernoulli equation.

    • Main Results:

    • 2D echocardiography detected aortic valve thickening and abnormal motion in 12 out of 13 patients.
    • Left-heart catheterization and CW Doppler both demonstrated significant pressure gradients in 12 patients.
    • Strong correlations were observed between CW Doppler-derived and catheterization-derived pressure gradients (instant peak: r=0.89, P<0.001; mean: r=0.75, P=0.002).

    Conclusions:

    • Continuous Wave (CW) Doppler echocardiography is a valuable, non-invasive tool for assessing the severity of aortic stenosis.
    • Doppler-derived pressure gradients correlate well with invasive catheterization measurements.
    • Echocardiography aids in identifying the causes of aortic stenosis, including rheumatic, bicuspid, and senile calcific types.