Method and device for ultrasound measurement of blood flow
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United States of America Patent
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Feb 2, 2010
Grant Date -
Aug 3, 2006
app pub date -
Feb 26, 2004
filing date -
Feb 27, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and a device (1) for ultrasound measurement of the blood flow through a heart valve are proposed. To permit a simple, automated measurement, it is proposed that the measurement area (9) of a measurement beam (7) is moved three-dimensionally by means of a multi-array transducer (11) and continuously evaluated for characteristic Doppler signals. It is further proposed to evaluate several measurement beams (7) with offset spatial, partially overlapping measurement areas (9) and/or several reference beams (8) with offset spatial measurement areas (10) for determination of the opening surface area, the volumetric flow rate, the flow volume and/or a value proportional thereto.
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