Conclusion
STE-LDDSE detection has certain clinical value in assessing the viability of myocardium in STEMI patients, superior to semi-quantitative visual estimation of LDDSE and resting STE.
STE-LDDSE detection is more sensitive in assessing the viability of myocardium in DM patients with concurrent STEMI compared to non-DM patients.
3. Preoperative STE-LDDSE detection in STEMI patients is safe and feasible for assessing the viability of myocardium before coronary revascularization, providing certain guidance for reestablishing blood flow.