Coronary disease & ACSDiagnostic or prognostic study

Predicting Intramyocardial Hemorrhage Before Reperfusion in STEMI Patients With Intrinsically Explainable Artificial Intelligence

JACC AdvPublished

  • development and validation of an explainable artificial intelligence approach

Authors' conclusion

Explainable artificial intelligence enabled rapid integration of clinical parameters from cardiac catheterization procedures to accurately predict IMH in STEMI before revascularization. The proposed approach could guide clinical decisions in real-time. This could inform future strategies aimed at reducing the incidence of IMH.

Study context

Population
STEMI patients from the MIRON-PREDICT clinical study, enrolled between June 2023 and December 2024STEMI patients enrolled · model development 252 · validation 36
Participants
288 patients
Comparison
Point-based 3-variable model (Superposable Neural Network-informed) against cardiac magnetic resonance imaging 48 to 72 hours post-percutaneous coronary intervention as the reference for intramyocardial hemorrhage (IMH)
  • developmentn = 252
  • validation cohortn = 36

Performance

As reported in the abstract

IMH on cardiac magnetic resonance imaging · 48 to 72 hours post-percutaneous coronary intervention

IMH identified

142/288

Further findings

Model performance for identifying patients at risk of IMH before reperfusion

accuracy

sensitivity

specificity

Coronary collaterals and total occlusion

Coronary collaterals present
144/288
Total occlusion
131/288

Sum ST-score

Substantially higher in IMH-positive than IMH-negative patients

Model performance for identifying patients at risk of IMH before reperfusion

Final 3-variable model: presence of coronary collaterals, degree of coronary artery occlusion, and sum ST-score

Original publication

Predicting Intramyocardial Hemorrhage Before Reperfusion in STEMI Patients With Intrinsically Explainable Artificial Intelligence. JACC Adv. Published 11 June 2026. doi:10.1016/j.jacadv.2026.102864

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