Key result
An algorithm using heart sounds and ECG estimated pre-ejection period and left ventricular ejection time with absolute errors of 7.66-11.86 ms and 11.39-17.51 ms compared to echocardiography.
Why the study?
Can an algorithm using heart sounds and ECG accurately measure systolic time intervals compared to echocardiography in healthy and CVD subjects?
Cross-Sectional
Can an algorithm using heart sounds and ECG accurately measure systolic time intervals compared to echocardiography in healthy and CVD subjects?
Heart sounds combined with ECG can be used to accurately estimate systolic time intervals (PEP and LVET) compared to echocardiography.
No takes yet. Share an insight, caveat, or question.
Supports feasibility of non-invasive systolic timing via wearables; leaves open prospective validation before clinical use.
Paiva et al. (2012) conducted a cross-sectional in Cardiovascular diseases. Heart sound and ECG-based algorithm vs. Echocardiography was evaluated on Absolute estimation error of pre-ejection period (PEP) and left ventricular ejection time (LVET). An algorithm using heart sounds and ECG estimated pre-ejection period and left ventricular ejection time with absolute errors of 7.66-11.86 ms and 11.39-17.51 ms compared to echocardiography.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: