Figure 7
Relationship between heart rate and amplitude of the relative MBF variation. A linear group correlation exists between individual heart rate and the corresponding relative variation ΔMBFCycl during adenosine stress (black triangles, rho = −0.83, P = 0.02). Even though no correlation was found at rest (gray diamonds, rho = −0.70, P = 0.08), a strong dependence of ΔMBFCycl on heart rate can be seen.