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Related Concept Videos

Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...

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Related Experiment Video

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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
06:34

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

Published on: October 28, 2020

Interventricular delay optimization: a comparison among three different echocardiographic methods.

Matteo Bertini1, Cinzia Valzania, Mauro Biffi

  • 1Institute of Cardiology, University of Bologna and Azienda Ospedaliera S. Orsola-Maplpighi, Bologna, Italy. doc.matber@gmail.com

Echocardiography (Mount Kisco, N.Y.)
|September 4, 2009
PubMed
Summary
This summary is machine-generated.

Interventricular (VV) interval optimization improves cardiac resynchronization therapy (CRT) outcomes. Three echocardiographic methods showed significant concordance for optimizing VV intervals, enhancing CRT benefits.

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Echocardiography

Background:

  • Cardiac resynchronization therapy (CRT) is a treatment for heart failure.
  • Optimizing interventricular (VV) pacing intervals is crucial for CRT efficacy.
  • Current VV optimization methods vary, necessitating comparative analysis.

Purpose of the Study:

  • To compare three distinct echocardiographic methods for interventricular (VV) interval optimization in patients undergoing CRT.
  • To evaluate the impact of VV interval optimization on hemodynamic parameters.
  • To assess the concordance between different VV optimization techniques.

Main Methods:

  • Thirty patients undergoing CRT were included in the study.
  • Three echocardiographic methods were employed: aortic velocity time integral (VTI), septal-to-lateral motion delay (velocity), and circumferential strain delay (strain).
  • Measurements were performed using 2D ultrasound border tracking for angle-independent data.

Main Results:

  • VV interval optimization significantly improved VTI, peak circumferential strain delay, and septal-to-lateral delay (P < 0.001).
  • Optimization yielded further improvements compared to other VV settings (P < 0.001).
  • High concordance was observed between the VTI, velocity, and strain methods (k = 0.63–0.71).

Conclusions:

  • Interventricular (VV) interval optimization provides additional benefits beyond standard CRT.
  • Echocardiographic methods demonstrate significant agreement for VV programming.
  • These findings support the use of echocardiography for personalized CRT optimization.