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 Concept Videos

Pipe Flowrate Measurement01:28

Pipe Flowrate Measurement

321
In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
The orifice meter is a simple,...
321
Rapidly Varying Flow01:24

Rapidly Varying Flow

51
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
51
Respiratory Volumes01:15

Respiratory Volumes

1.3K
Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
1.3K
Design Example: Designing a Residential Plumbing System01:25

Design Example: Designing a Residential Plumbing System

378
The design of residential plumbing systems requires carefully evaluating water demand, flow rates, and pressure dynamics to ensure both efficiency and reliability. The nature of water flow within pipes is defined by its Reynolds number, which classifies flow as either laminar (smooth) or turbulent.
378
Dimensionless Groups in Fluid Mechanics01:15

Dimensionless Groups in Fluid Mechanics

281
Dimensionless groups in fluid mechanics provide simplified ratios that help analyze fluid behavior without relying on specific units. The Reynolds number (Re), which represents the ratio of inertial to viscous forces, distinguishes between laminar and turbulent flows, making it essential in the design of pipelines and aerodynamic surfaces. The Froude number (Fr), the ratio of inertial to gravitational forces, is particularly useful in predicting wave formation and hydraulic jumps in...
281

You might also read

Related Articles

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

Sort by
Same author

Escalating Diameter Buddy Balloon in Transcatheter Aortic Valve Implantation With Complex Aortic Arch.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

Prognostic Impact of Pacemaker Implantation in Transcatheter Aortic Valve Replacement With Self-Expanding Prosthesis.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

Prevalence and Characteristics of INOCA in Patients With Either Angiographically Normal Vessels or Non-Obstructive Coronary Atherosclerosis. Insights From the All-Comers Prospective AID-ANGIO Study.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

Influence of Pullback Pressure Gradient on Residual Angina at One Year.

Circulation. Cardiovascular interventions·2026
Same author

Vessel-Oriented Analysis on the Relationship Between Quantitative-Flow Ratio and Mortality in Patients With Severe Aortic Stenosis and Intermediate Coronary Lesions.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

Barriers to guideline implementation in intermediate- and high-risk Pulmonary Embolism: insights from a real-world cohort study.

Acta clinica Belgica·2025
Same journal

Personalized Antithrombotic Therapy After Percutaneous Coronary Intervention: A Systematic Review of Risk-Stratified Approaches.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same journal

Clinical Predictors of Rescue Duration in Acute Pericardial Tamponade in Atrial Fibrillation Ablation.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same journal

Lower AKI Risk and Higher Survival With Microaxial Flow Pump Support During Elective PCI: A Propensity Score-Matched Study.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same journal

Current Advances and Navigating the Complexities of SVG-PCI.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same journal

Association of Hospital Volume With Outcomes of Pulmonary Embolism in the United States.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same journal

A Stepwise Approach to Coronary Bifurcation Stenting: Enhancing Safety and Efficacy With Modified Jailed Balloon Techniques.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
See all related articles

Related Experiment Video

Updated: Jun 5, 2025

Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats
09:40

Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats

Published on: November 3, 2016

11.6K

Gender-Based Specificities of Fractional Flow Reserve Measurement.

Fabio Mangiacapra1,2, Gabor G Toth3, Luca Paolucci1,2

  • 1Research Unit of Cardiovascular Science, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|December 11, 2024
PubMed
Summary
This summary is machine-generated.

Female patients have higher fractional flow reserve (FFR) values than males. A diameter stenosis (DS) of 50% best identifies significant coronary artery disease in both genders, though higher thresholds improve classification in women.

Keywords:
coronary artery diseasecoronary revascularizationfractional flow reserve

More Related Videos

Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice
06:39

Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice

Published on: April 13, 2015

14.9K
Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
08:42

Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research

Published on: October 22, 2014

27.3K

Related Experiment Videos

Last Updated: Jun 5, 2025

Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats
09:40

Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats

Published on: November 3, 2016

11.6K
Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice
06:39

Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice

Published on: April 13, 2015

14.9K
Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
08:42

Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research

Published on: October 22, 2014

27.3K

Area of Science:

  • Cardiovascular medicine
  • Interventional cardiology
  • Diagnostic imaging

Background:

  • The relationship between coronary angiographic findings and fractional flow reserve (FFR) based on gender is not well understood.
  • Assessing coronary stenosis severity requires accurate methods for both anatomical and functional evaluation.

Purpose of the Study:

  • To investigate gender-based differences in the agreement between coronary angiography and FFR measurements.
  • To determine if angiographic parameters predict functional significance of coronary stenoses differently in men and women.

Main Methods:

  • Analysis of 3770 coronary stenoses from stable patients who underwent both quantitative coronary angiography and FFR measurements.
  • Comparison of diameter stenosis (DS) thresholds for predicting ischemic FFR values between genders using receiver operating characteristic (ROC) analysis.

Main Results:

  • Median FFR values were higher in females (0.84) compared to males (0.81).
  • A 50% DS was optimal for identifying functionally significant stenoses in both genders.
  • A higher DS threshold (≥59%) improved lesion classification in females but increased false negatives.

Conclusions:

  • Female patients exhibit higher FFR values across various diameter stenosis (DS) levels compared to male patients.
  • A DS threshold of 50% effectively identifies functionally significant coronary stenoses in both men and women.
  • While a higher DS threshold improves classification in women, it comes at the cost of increased false negatives.