Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Transcranial Doppler ultrasound of the middle cerebral artery at a depth of 50 mm. The image shows peak systolic velocity of 210 cm/s, mean flow velocity (MFV) of 131 cm/s, pulsatility index of 1.04, and resistance index of 0.65. MFV in the internal carotid artery was 28.4 cm/s, Lindegaard's ratio was 4.6, indicating moderate vasospasm
