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

Electrocardiogram01:29

Electrocardiogram

4.6K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
4.6K

You might also read

Related Articles

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

Sort by
Same author

Natural shear wave velocities at rest are associated with impaired cardiopulmonary fitness in childhood cancer survivors.

Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography·2026
Same author

Acoustic and mechanical characterisation of a 3D-printable transparent vessel-mimicking material for pre-clinical imaging: comparison with ex-vivo vessels and established clinically-relevant materials.

Ultrasonics·2026
Same author

Correction: Continuous shear wave measurements for dynamic cardiac stiffness evaluation in pigs.

Scientific reports·2026
Same author

High frame rate speckle tracking echocardiography to image the left ventricular mechanical activation sequence in healthy participants and patients with left bundle branch block.

European heart journal. Imaging methods and practice·2026
Same author

Utilization of Sexual and Reproductive Healthcare Services Among Young Women in Two Districts of Hanoi, Vietnam.

International journal of MCH and AIDS·2026
Same author

Experimental Validation of Scaphoid Tracking Using a Flexible Dual-Array Ultrasound Probe: From Proof-of-Concept to Practice.

Ultrasound in medicine & biology·2026

Related Experiment Video

Updated: Nov 17, 2025

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking
07:21

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking

Published on: February 12, 2011

14.6K

Myocardial Strain Measured by Epicardial Transducers-Comparison Between Velocity Estimators.

Thuy Thu Nguyen1, Andreas W Espinoza2, Stefan Hyler3

  • 1Department of Microsystems, University of South-Eastern Norway, Horten, Norway.

Ultrasound in Medicine & Biology
|February 17, 2021
PubMed
Summary

This study presents an experimental ultrasound system for continuous heart contraction measurement. The system accurately tracks myocardial motion and estimates regional strain, with optimized methods for improved accuracy and real-time applications.

Keywords:
DopplerMiniature transducerMyocardial tissue velocityPigStrainTime delay estimationUltrasound

More Related Videos

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
11:50

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart

Published on: July 9, 2010

24.4K
Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
09:05

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Published on: October 20, 2016

19.9K

Related Experiment Videos

Last Updated: Nov 17, 2025

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking
07:21

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking

Published on: February 12, 2011

14.6K
High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
11:50

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart

Published on: July 9, 2010

24.4K
Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
09:05

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Published on: October 20, 2016

19.9K

Area of Science:

  • Biomedical Engineering
  • Cardiovascular Imaging
  • Ultrasound Technology

Background:

  • Accurate measurement of myocardial motion and strain is crucial for diagnosing cardiac conditions.
  • Conventional ultrasound methods face challenges in precisely tracking velocity variations within the myocardium.

Purpose of the Study:

  • To develop and evaluate an experimental ultrasound system for continuous measurement of heart contractions.
  • To assess novel velocity estimation techniques for improved myocardial motion and strain analysis.

Main Methods:

  • Utilized miniature epicardial ultrasound transducers for continuous heart contraction monitoring.
  • Modified Doppler and time delay estimation algorithms to account for velocity variations within the myocardium.
  • Tested four velocity estimators against simulated data and in vivo animal recordings.

Main Results:

  • The developed ultrasound system successfully reproduced myocardial velocity distributions and tracked layer motion.
  • Upsampling ultrasound scanlines by a factor of 10 improved accuracy in time delay estimation.
  • A constant acceleration Doppler algorithm demonstrated superior performance in capturing rapid velocity changes.

Conclusions:

  • The experimental ultrasound system effectively measures myocardial velocity and strain.
  • Optimized ultrasound processing techniques enhance accuracy for cardiovascular applications.
  • Method selection (time delay estimation vs. constant acceleration Doppler) depends on the balance between accuracy and real-time processing needs.