Prognostic validity of coronary flow reserve (CFR)-derived mapping-stress MRI in the risk stratification of suspected or known CAD patients

Abstract Purpose Aim of our study is to evaluate the prognostic value of T1 stress mapping in suspected or known- CAD patients. Materials and methods In this retrospective study, there were 34 patients with known CAD. Mean follow-up time was 30.9 months (95% CI 29.49–32.31). All eligible participants were re-called for an on-site interview and we evaluated Primary endpoints like all Major Adverse Cardiac Events (MACE) and Secondary endpoints (arrhythmias and all cardiac causes of clinical worsening). Results Our general population of patients was split into responders and nonresponders based on T1 Mapping response. The T1 values were not statistically significant when compared based on collected MACE; however, when compared to secondary outcomes, there were significant differences in non-responders patients ( p -value 0.001). Conclusion The microcirculation defect can be identified more effectively and accurately with T1 mapping than conventional qualitative evaluation. T1 mapping assumes a prognostic and therapeutic significance in stratifying the risk of patients with microvascular angina who have shown secondary outcomes.