Estimating cerebral blood flow through big cerebral arteries like ACA, MCA or PCA is achieved by measuring blood flow velocity with ultrasound transcranial Doppler (TCD). Have you used TCD in your neuro-intensive care unit for traumatic brain injury patients on a daily basis? Do you think that we obtain sufficient information from these flow velocity measurements?
Roop Kishen
There is not enough evidence (as yet) that TCD is useful or gives us meaningful information. TCD is probably more useful in intra-cerebral haemorrhage but again, not enough information as yet
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