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How does the accuracy of Stethophone Pro AI compare to traditional medical devices?

Updated

We have validated Stethophone Pro algorithms for AI heart sound analysis in rigorous retrospective and clinical performance testing. Stethophone Pro AI has demonstrated high-performance results for the primary indicators (murmur detection and heart sound timing). Its sensitivity, specificity, and accuracy are on par with popular commercially available digital stethoscopes (see current performance metrics in the table below).

Murmur detection

MetricDatasetTest result
SensitivityAmerica88.7
95% CI: (87.2 to 89.8)
Multi-Device93.0
95% CI: (91.9 to 94.2)
SpecificityAmerica89.2
95% CI: (87.2 to 91.3)
Multi-Device94.4
95% CI: (93.7 to 95.4)
AccuracyAmerica88.8
95% CI: (87.6 to 89.8)
Multi-Device93.8
95% CI: (93.1 to 94.6)
ROC AUCAmerica96.9
95% CI: (96.1 to 97.3)
Multi-Device97.9
95% CI: (97.5 to 98.3)

Heart sound timing

MetricDatasetTest result
S1 precisionAmerica97.1
95% CI: (96.7 to 97.5)
Multi-Device96.9
95% CI: (96.6 to 97.3)
S1 sensitivity (recall)America97.3
95% CI: (97.0 to 97.7)
Multi-Device97.9
95% CI: (97.7 to 98.1)
S2 precisionAmerica97.5
95% CI: (97.2 to 97.9)
Multi-Device97.1
95% CI: (96.7 to 97.4)
S2 sensitivity (recall)America96.5
95% CI: (96.1 to 97.0)
Multi-Device97.7
95% CI: (97.5 to 97.9)