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[Left ventricular systolic function: how to understand it and analyze it].

G C Fernández-Pérez1, A Franco López2, M Á García Fernández3

  • 1Servicio de Radiodiagnóstico, Complejo Asistencial de Ávila, Ávila, España.

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|April 8, 2014
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Summary

Understanding left ventricular systolic function is key for interpreting cardiac MRI results. This guide explains how parameters are calculated and why values differ across imaging techniques, offering a free Excel tool for analysis.

Keywords:
End-diastolic volumeEnd-systolic volumeFracción de eyección ventricularGrosor parietal relativoMagnetic resonance imagingMétodo SimpsonRelative wall thicknessResonancia magnéticaSimpson methodVentricular ejection fractionVolumen telediastólicoVolumen telesistólico

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Left ventricular systolic function is crucial for assessing cardiac health.
  • Automatic calculations in cardiac magnetic resonance imaging (CMR) can obscure underlying methodologies.
  • Discrepancies in systolic function parameters between different imaging modalities necessitate clear explanations.

Purpose of the Study:

  • To elucidate the methods used for calculating left ventricular systolic function in CMR.
  • To explain the reasons for variations in systolic function parameters obtained via different imaging techniques.
  • To provide accessible tools for analyzing systolic function.

Main Methods:

  • Detailed explanation of quantitative and qualitative analysis of systolic function parameters.
  • Description of alternative methods for systolic function assessment not requiring specialized software.
  • Development and provision of a Microsoft Excel-based tool for simplified systolic function analysis.

Main Results:

  • The article clarifies the derivation of common systolic function parameters from CMR data.
  • It highlights factors contributing to differences in measurements between CMR and other modalities like ultrasonography.
  • A user-friendly Excel tool is made available for practical application.

Conclusions:

  • A thorough understanding of systolic function calculation methods enhances the interpretation of CMR studies.
  • Awareness of inter-modality differences is essential for accurate clinical decision-making.
  • The provided resources aim to improve the accessibility and accuracy of systolic function analysis.