How should we measure global and regional left ventricular systolic function?

Area of Science:

• Cardiology
• Medical Imaging
• Echocardiography

Background:

• Left ventricular (LV) systolic function assessment is crucial in echocardiography.
• LV ejection fraction (EF) is the primary metric but has limitations.
• Alternative measures are needed for patients with suspected heart failure and normal EF.

Purpose of the Study:

• To explore additional echocardiographic methods for assessing LV systolic function.
• To evaluate the utility of alternative measures beyond EF.
• To investigate techniques for detecting subtle or regional LV dysfunction.

Main Methods:

• Utilizing M-mode and deformation analysis (tissue Doppler, speckle tracking) for longitudinal function.
• Employing contrast echocardiography to enhance LV endocardial border delineation.
• Assessing regional wall motion abnormalities.

Main Results:

• Longitudinal function measurements provide valuable information, especially in heart failure with preserved EF.
• Contrast echocardiography improves detection of LV wall motion abnormalities.
• Deformation analysis aids in identifying subtle abnormalities but requires careful application due to variability.

Conclusions:

• While EF is standard, other echocardiographic parameters offer critical supplementary data.
• Advanced imaging techniques can enhance the detection of LV dysfunction.
• Careful consideration of measurement variability is essential when using deformation analysis.