It may be due to either a stenosis or cerebral vasospasm. What is the
clinical history of the patient. If the patient is young, it is probably
normal. What vessel are you interrogating? What time average mean flow
velocity does the same contralateral vessel show for comparison?
105 cm/s may be normal depending on the answers to some of these questions.
Also, what equipment are you using and how do you derive your "mean"
Tom Rosendahl, RN BS RVT
> From: Dawn Stirrat[SMTP:[log in to unmask]]
> Reply To: UVM Flownet
> Sent: Wednesday, May 14, 2003 4:04 PM
> To: [log in to unmask]
> Subject: TCI
> Hi all you vascular gurus out there. I am looking on information on what
> the mean velocities for TCD mean. For instance, I had a patient the other
> day who had a mean velocity of 105. Now, I know that is high, but just
> why, no one in my lab seemed to be able to tell me...just that it was that
> way. Any insight?
> Dawn Stirrat, RVT
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