Device and method for mapping and tracking blood flow and determining parameters of blood flow
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United States of America Patent
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Jan 27, 2004
Grant Date -
N/A
app pub date -
Mar 20, 2002
filing date -
May 28, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and device are provided for use in medical applications that permit affordable 3D imaging of blood flow using a low profile easily long-term unattended Doppler ultrasound monitoring in spite of motion of the patient or pad. The pad, and associated processor collects, Doppler processes ultrasound blood velocity data in a 3D region through the use of a planar phased array of piezoelectric elements. The invention locks onto, and tracks the points in 3D space that produce the locally maximum blood velocity signals. The integrated coordinates of points acquired by the accurate tracking process is used to form a 3D map of blood vessels, provide a display that can be used to select multiple points of interest for expanded data collection, for long-term continuous, and unattended blood flow monitoring.
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