Fig. 3From: Myocardial blood flow and myocardial flow reserve values in 13N–ammonia myocardial perfusion PET/CT using a time-efficient protocol in patients without coronary artery diseaseScatter plot MBF stress/rest and MFR by age with linear regression analysis. Significant negative correlation of MBF in stress (r = − 0.139, p = 0.047) and MFR (r = − 0.165, p = 0.018) with age. MBF = Myocardial Blood Flow, MFR = Myocardial Flow ReserveBack to article page