Figure 12

Specific case of clinical relevance. Intracoronary pressure at baseline and during dobutamine challenge. The proximal pressure, p _proximal was taken from the inlet of the coronary tree (LMCA), the distal pressure, p _distal in a segment 3 cm distal to the myocardial bridge. At baseline the mean FFR was 0.90, while during dobutamine challenge the mean FFR was 0.84. The corresponding pressure drops were Δp = 1.25 kPa and Δp = 1.54 kPa respectively.