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Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
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Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
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Right ventricular strain: measurement and clinical application.

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Right ventricular (RV) free wall longitudinal systolic strain (RVFWS) offers a reproducible method for assessing RV function. This echocardiography technique improves the characterization of RV physiology and patient prognosis across various cardiovascular diseases.

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Area of Science:

  • Cardiology
  • Echocardiography
  • Cardiac Imaging

Background:

  • Right ventricular (RV) assessment is challenging due to its asymmetrical shape, often requiring multiple views and subjective interpretation.
  • Traditional methods like tricuspid annular plane systolic excursion and RV tissue Doppler velocity have limitations in fully characterizing RV physiology.

Purpose of the Study:

  • To review the clinical utility of two-dimensional RV free wall longitudinal systolic strain (RVFWS) using speckle-tracking echocardiography.
  • To explore the integration of RVFWS with other echocardiographic measurements for enhanced RV assessment.

Main Methods:

  • Utilizing speckle-tracking echocardiography for two-dimensional RV free wall longitudinal systolic strain (RVFWS) analysis.
  • Reviewing existing studies demonstrating the feasibility, reproducibility, and prognostic value of RVFWS.

Main Results:

  • RVFWS has emerged as a reproducible, feasible, and highly prognostic technique for quantifying RV function.
  • RVFWS has shown utility in diverse cardiovascular conditions including heart failure, pulmonary hypertension, and ischemic heart disease.

Conclusions:

  • RVFWS provides a more accurate assessment of RV function, cause, and prognosis compared to traditional methods.
  • Integrating RVFWS into clinical practice can guide and improve patient care decisions in cardiovascular disease management.