Figure 2. Carotid artery blood flow in high output heart failure. (A) Representative image of ultrasound scanning showing carotid artery in one Sham rat and one HF rat (B) Representative traces of carotid artery blood flow, assessed by Doppler at rest in one Sham rat and one HF rat. (C) Summary data showing carotid artery diameter. (D) Summary data showing carotid artery blood flow. Note that blood flow to the brain region was unaltered between groups. Values are means ± S.E.M. *p < 0.05 vs. Sham. Unpaired t-test. n=6 rats per group.