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Table 1 Summary of the middle cerebral artery blood flow velocity and insonation depth in healthy volunteers and patients

From: Reproducibility of Transcranial Doppler ultrasound in the middle cerebral artery

Healthy Volunteers
Velocity (cm/s) Examination 1 Examination 2 Examination 3
 Peak 75.70 ± 23.91 72.00 ± 20.28 82.75 ± 19.93
 Mean 49.95 ± 15.30 47.05 ± 12.85 52.60 ± 11.73
 Diastolic 34.70 ± 11.28 29.50 ± 10.65 35.45 ± 8.40
 MCA depth (mm) 51.75 ± 2.65 51.75 ± 2.94 51.20 ± 2.93
Patients
Velocity (cm/s) Examination 1 Examination 2 Examination 3
 Peak 73.70 ± 18.94 73.10 ± 16.62 71.20 ± 17.62
 Mean 45.40 ± 11.79 45.20 ± 10.83 43.50 ± 9.96
 Diastolic 27.30 ± 8.90 27.10 ± 8.14 25.60 ± 6.57
 MCA depth (mm) 51.40 ± 5.33 51.55 ± 5.21 51.65 ± 5.24
  1. Data are presented as mean ± standard deviation. MCA, middle cerebral artery