Figure 2. Comparison of mean flow velocities (MFVs) recorded within the first 3 days of admission according to diagnosis of symptomatic vasospasm (sVSP). Measurements were obtained from the middle cerebral artery (MCA) and the anterior cerebral artery (ACA). MCA without sVSP = 61.7 ± 17.9 cm/s; MCA with sVSP = 88.1 ± 35.2 cm/s; ACA without sVSP = 47.1 ± 16.8 cm/s; ACA with sVSP = 69.5 ± 30.0 cm/s.