Eko Foundation Analysis Software with Transformers (EFAST) vs Eko Low Ejection Fraction Tool (ELEFT)

When choosing between Eko Health’s EFAST and ELEFT AI tools, physicians should consider their primary diagnostic focus and practice setting. Both are FDA-cleared, cloud-based software solutions that integrate with Eko digital stethoscopes to enhance cardiac assessments during routine physical exams. The key practical difference lies in their specialized detection capabilities and pricing models.

EFAST (Eko Foundation Analysis Software with Transformers) is best suited for clinicians prioritizing the detection of structural murmurs associated with heart disease and atrial fibrillation (AFib). It offers real-time AI analysis during auscultation, with reported 93% sensitivity and 91% specificity for structural murmur detection, and 95% sensitivity and 94% specificity for AFib detection. EFAST is available through an Eko+ membership, which is subscription-based and included with a stethoscope purchase, costing approximately $2.00/day for the advanced stethoscope technology. This tool is ideal for individual providers in cardiology, family medicine, or internal medicine who need comprehensive, real-time insights into common cardiac conditions.

Conversely, ELEFT (Eko Low Ejection Fraction Tool) is designed for the early identification of low ejection fraction (LVEF ≤ 40%), a key indicator of heart failure. ELEFT analyzes ECG and heart sound recordings, providing results in approximately 15 seconds. It is part of Eko’s SENSORA™ platform, an enterprise solution, and requires contacting Eko Health sales for specific pricing. ELEFT is particularly beneficial for health systems or practices with a focus on proactive heart failure screening and management in at-risk patient populations, such as those with coronary artery disease, diabetes mellitus, cardiomyopathy, hypertension, and obesity.

Reviewed by Pouyan Golshani, MD — Interventional Radiologist