Myocardial Strain Analysis
Myocardial Strain Analysis - Related Videos
07:21
Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking
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Cited by 186 •
2011
An accurate and practical method to measure parameters like strain in myocardial tissue is of great clinical value, since it has been shown, that strain is a more sensitive and earlier marker for contractile dysfunction than the frequently used parameter EF.
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
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Cited by 9 •
2010
High frequency Doppler ultrasound is a novel technology for assessing regional myocardial function. This work presents first evidence demonstrating applicability of this versatile imaging platform for the repeated measure of myocardial strain, dp/dt, and mitral regurgitation in the ischemia-reperfused (IR) murine heart.
01:29
Three-Dimensional Analysis of Strain
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2024
Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
01:14
Bending of Curved Members - Strain Analysis
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2024
The mechanics of deformation in curved members, such as beams or arches, under bending moments, involve complex responses. When such a member, symmetric about the y-axis and shaped like a segment of a circle centered at point C, is subjected to equal and opposite forces, its curvature and surface lengths change significantly. This alteration results in the shift of the curvature's center from C to C', indicating a tighter curve. The important part of bending analysis for such a member is the...
11:17
A Microscopic 2,3,5-Triphenyltetrazolium Chloride Assay for Accurate and Reliable Analysis of Myocardial Injury
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2025
The present 2,3,5-Triphenyltetrazolium Chloride (TTC) assay introduces a refined TTC staining protocol that enables the analysis of myocardial injury at microscopic resolution, producing high-quality images that allow for accurate and reliable assessment of infarct size and cardiomyocyte viability at the cellular level.
FAQs
Speckle-tracking echocardiography follows natural acoustic patterns across successive ultrasound frames. Their movement is compared from one frame to the next to estimate myocardial deformation rather than relying only on chamber volume changes. This frame-by-frame tracking allows clinicians to quantify motion in specific directions and detect functional abnormalities that may not be obvious from ejection fraction alone.
Longitudinal, radial, and circumferential strain describe deformation along different myocardial directions. Considering all three avoids reducing ventricular function to a single geometric change. Direction-specific results can reveal whether impairment is regional or selective, helping characterize how contraction or relaxation is affected in a particular cardiac disorder.
Strain quantifies myocardial deformation directly, whereas ejection fraction summarizes the proportion of blood leaving the heart. These measurements therefore describe related but different aspects of cardiac performance. By adding deformation data, clinicians can assess regional or subclinical dysfunction that may not be fully represented by the overall ejection-fraction value.
Sequential frames are essential because strain depends on tracking how the same natural acoustic patterns shift during the cardiac cycle. Comparing those positions over time permits calculation of deformation instead of a single visual judgment of wall motion. In practice, this temporal information supports quantitative assessment of both contraction and relaxation.
Measurements are particularly relevant when ischemia, cardiomyopathies, or other cardiac disorders may alter myocardial function. The technique can reveal regional or subclinical dysfunction, adding detail to the clinical assessment. Because it captures functional changes that may not be summarized by ejection fraction alone, it supports evaluation across varied cardiac disease contexts.
Beyond initial assessment, strain results can be used to follow myocardial function during treatment and to support risk assessment. Monitoring can indicate whether dysfunction changes over time, while regional findings add clinical detail to the overall evaluation. These uses make the technique relevant not only to identifying abnormalities but also to ongoing management of cardiac disorders.