Figure 12From: Transient integral boundary layer method to calculate the translesional pressure drop and the fractional flow reserve in myocardial bridges 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.Back to article page