Japanese Circulation Society

IS147: Coronary Pressure Measurement and Fractional Flow Reserve
Nico H.J. Pijls, M.D., Ph.D.

Figure 5. Intravenous adenosine increases the small resting gradient to a large gradient of hyperemia and good steady state, allowing calculation of the FFR. (Pa, aortic pressure; Pd, distal pressure; FFRmyo, myocardial fractional flow reserve). Pijls 2000.