Heart failure & cardiomyopathiesDiagnostic or prognostic study

Artificial Intelligence for the Detection of Hypertrophic Cardiomyopathy From Standard Electrocardiogram

JACC AdvPublished

  • diagnostic performance evaluation of an artificial intelligence (AI) algorithm

Authors' conclusion

The AI ECG algorithm demonstrated highly specific HCM detection confirmed by cMRI and may improve early identification of unrecognized HCM.

Study context

Population
Patients with cardiac magnetic resonance imaging (cMRI) for suspected hypertrophic cardiomyopathy (HCM), with confirmed HCM and analyzable electrocardiograms (ECGs), and control patients without cardiomyopathyall patients, of 314 patients with cMRI for suspected HCM, 150 had analyzable ECGs and confirmed HCM · HCM 150 · Control patients without cardiomyopathy 83
Participants
233 patients
Comparison
Viz HCM AI ECG labels vs ground truth
  • HCMn = 150
  • Control patientsn = 83

Performance

As reported in the abstract

Diagnostic performance for HCM detection

area under the curve

0.946 (95% CI: 0.916-0.970)

sensitivity

58% (95% CI: 50.0%-65.6%)

specificity

100% (95% CI: 95.6%-100%)

Further findings

Predictor of correct detection: apical subtype

Comparisonadjusted OR (95% CI)P value
Apical subtype · multivariable logistic regression4.71 (1.71–15.48)P = 0.005

Early detection before clinical diagnosis

Patients with ECGs available at least 1 year prior to cMRI in whom HCM was detected
9 of 28
Time before clinical diagnosis (median), among those 9
2.6 years

Baseline characteristics

mean age of all 233 patients
56 years
male
62%

Original publication

Artificial Intelligence for the Detection of Hypertrophic Cardiomyopathy From Standard Electrocardiogram. JACC Adv. Published 16 June 2026. doi:10.1016/j.jacadv.2026.102914

Summarised from the published abstract; every number is checked against it