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Figure 1 Receiver operating characteristic curves for the presence of ischemia of the hemodynamic variables measured. dMPVcol = diastolic collateral maximal peak velocity; dVicol = diastolic collateral blood flow velocity integral; Pw = mean coronary wedge pressure; Pw/Pao = coronary wedge/aortic pressure ratio; Rcoll = collateral resistance; Rrec = peripheral resistance of the recipient coronary artery; sVicol = systolic collateral blood flow velocity integral; Vicol = total collateral blood flow velocity integral.
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