Fig. 9.
Representative tracings of phasic blood flow in the right coronary artery and left anterior descending coronary artery in a patient with chronic pulmonary artery hypertension (top) and a healthy control (bottom). Of note is that right coronary blood flow is relatively constant across the cardiac cycle in the normal patient but nearly limited exclusively to diastole in the patient with chronic pulmonary hypertension, essentially mimicking the phasic distribution of coronary blood flow in the normal left coronary circulation. Published with permission from van Wolferen et al.79