Evaluating the Association Between the Three Different Ejection Fraction Measurement Techniques and Left Ventricle...

Area of Science:

• Cardiology
• Echocardiography
• Cardiac Imaging

Background:

• Cardiovascular disease (CVD) prognosis relies on systolic function, measured by ejection fraction (EF).
• Left ventricular global strain (LVGS) shows superior predictivity for CVD diagnosis, prognosis, and staging compared to EF.
• Previous studies have not thoroughly investigated the correlation between different EF measurement methods and LVGS parameters.

Purpose of the Study:

• To analyze the association between three ejection fraction (EF) measurement methods and left ventricular global strain (LVGS).
• To determine which EF measurement method correlates best with LVGS.
• To evaluate the diagnostic utility of different EF methods for abnormal LVGS.

Main Methods:

• Echocardiography was performed on 62 patients (excluding those with atrial fibrillation or poor image quality).
• Three EF measurement techniques were employed: visual EF, Simpson's rule EF, and Teicholtz method.
• Statistical analysis was used to assess the correlation between EF measurements and LVGS parameters.

Main Results:

• A statistically significant association was found between visual EF, Simpson EF, and LVGS parameters (p<0.001).
• Simpson's rule EF demonstrated a good correlation with LVGS parameters (r=0.710).
• Visual EF showed a moderate correlation with LVGS parameters (r=0.44).

Conclusions:

• Simpson's rule ejection fraction (EF) measurement correlates better with left ventricular global strain (LVGS) than visual EF or the Teicholtz method.
• Simpson's rule EF offers a superior area under the curve for identifying abnormal LVGS.
• The study recommends using Simpson's rule EF for evaluating ventricular function due to its stronger correlation with LVGS.