Metformin effect on internal carotid artery blood flow assessed by area under the curve of carotid artery Doppler in women with polycystic ovarian syndrome

Figure 2 A sample of internal carotid artery Doppler. A: It shows a real-time internal carotid artery Doppler; we have simulated the way of measuring the area under the curve by Paint app to the last wave. Note how different heights of the systolic and diastolic blood flow (demarcated with orange dots ), which are used to measure the area under the curve (demarcated as orange longitudinal lines); B: It shows the graphical simulation of the internal carotid artery Doppler wave with the different heights (demarcated in red dots) used to measure the systolic and diastolic blood flow for the calculation of the area under the curve.