Non-invasive real time diagnosis of migraine
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United States of America Patent
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Nov 24, 1998
Grant Date -
N/A
app pub date -
May 28, 1997
filing date -
Nov 15, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of real-time determination of variations in effective diameter of cranial blood vessels, thereby to provide an indication of migraine activity, which includes determining the blood flow rate to the brain of a subject; determining the intracranial blood flow rate in selected blood vessels; and comparing the intracranial blood flow rate with the determined blood flow rate to the brain thereby to determine a change in the intracranial blood flow rate relative to the blood flow rate to the brain, indicating a corresponding change in the effective diameter of the preselected blood vessel.
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