Association between neutrophil/lymphocyte ratio and MR myocardial first pass perfusion in patient with coronary microvascular dysfunction

Motivation: The study on correlation between blood neutrophil-to-lymphocyte ratio (NLR) and cardiac magnetic resonance perfusion imaging (CMRI) quantitative indexes in patients with cardiac syndrome X (CSX) is few. Goal(s): To investigate the relationship between the blood neutrophil/lymphocyte ratio (NLR) and the mean value and coefficient of variation of the magnetic resonance myocardial first pass perfusion parameters in patients with cardiac syndrome X. Approach: A total of 53 patients with CSX and 43 patients with unstable angina pectoris (UAP) were evaluated using MR myocardial perfusion and blood routine examination. Results: A negative correlation was observed between the myocardial perfusion index in CSX and blood NLR. Impact: It is provided further evidence for the potential utility of NLR as a diagnostic marker for CSX.