Research Article

Noninvasive Detection of Left-Ventricular Systolic Dysfunction by Acoustic Cardiography in Atrial Fibrillation

Figure 1

The means and 95% confidence intervals for electromechanical activation time (EMAT), the systolic dysfunction index (SDI) and ejection fraction (EF) for populations with and without left ventricular systolic dysfunction (LVSD). Afib: atrial fibrillation; EMAT: electromechanical activation time, msec; SDI: systolic dysfunction index; EF: ejection fraction, %; LVSD: left ventricular systolic dysfunction, defined as LV max(dP/dt) < 1600 mmHg/s.
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