Figure 1

Blood flow and rSO₂ before and after PTA. (a) Comparison of carotid and brachial artery blood flow before and after PTA. (b) Comparison of rSO₂ before and after PTA. Asterisk shows statistically significant compared with before PTA. PTA percutaneous transluminal angioplasty, FV flow volume, rSO₂ regional oxygen saturation.