FIGURE 2. Ipsilateral and contralateral bispectral index (BIS)—Vista, transcranial Doppler of middle cerebral artery blood flow velocity (MCBFV), and pulsatility.

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FIGURE 2. Ipsilateral and contralateral bispectral index (BIS)—Vista, transcranial Doppler of middle cerebral artery blood flow velocity (MCBFV), and pulsatility index (PI) before clamping, after cross-clamping, at clamp release, and at 10 minutes of stable blood velocity after clamp release. From: The Utility of Using the Bispectral Index–Vista for Detecting Cross-Clamping Decline in Cerebral Blood Flow Velocity Oper Neurosurg (Hagerstown). 2010;67(suppl_1):ons102-ons107. doi:10.1227/01.NEU.0000383152.50183.81 Oper Neurosurg (Hagerstown) | © 2010 by the Congress of Neurological Surgeons 1

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