The association of 18F-FDG PET/CT and biomarkers in confirming coronary microvascular dysfunction.

A total of 28 patients (21 males and 7 females) were included in this descriptive observational study (both qualitative and quantitative). The mean patient age was 55.50 ± 10.21 years (range 27-70 years) and the median was 56.5 years (range 49-63 years). All patients underwent Echo, CAG and PET/CT scan. Chest tightness was the most common symptom in our study. Most patients had normal blood pressure (n = 18, 64.3%) while only (n = 10, 37.5%) had hypertension, and (n = 1, 3.6%) had diabetes mellitus. The mean HDL in CMVD (n = 25) and non-CMVD (n = 3) were 1.30 ± 0.39 and 1.08 ± 0.95, respectively, indicating that the difference between the groups was statistically significant (p = 0.04). Similarly, the mean HBA1c- (glycated haemoglobin) in CMVD (n = 25) and non-CMVD (n = 3) were 5.6 ± 0.53 and 5.0 ± 0.26, respectively, with (p = 0.03). Our findings managed to show the association between biomarkers and PET/CT CFR in confirming the diagnosis of coronary microvascular dysfunction.