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 4 A real-time Doppler scan. A: A real-time Doppler scan showing progressive reduction of the area under the curve of the internal carotid artery with treatment. Note the decrease in the peak of the wave in a subsequent visit 3 mo apart; from 80 to 60; B: A real-time Doppler scan showing the progressive reduction of the area under the curve of the internal carotid artery with treatment. Note the reduced wave peak to 60 following treatment compared to previous Figure 4A.