Method and device for ultrasound measurement of blood flow

Details Method and device for ultrasound measurement of blood flow Method and device for ultrasound measurement of blood flow

2004-02-26

2010-02-02

Winakur, Eric F (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S450000, C600S462000, C600S465000

Reexamination Certificate

active

07654960

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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Buck, Thomas, et al., “Flow Quantification in Valvular Heart Disease Based on the Integral of Backscattered Acoustic Power Using Doppler Ultrasound”, Proceedings of the IEEE, vol. 88, No. 3, Mar. 2000.
Buck, Thomas, et al., “The Power-Velocity Integral at the Vena Contracta A New Method for Direct Quantification of Regurgitant Volume Flow”, Mass. Gen. Hospital, Harvard Medical School, Boston, Mass., Am. Heart Assoc., pp. 1053-1061, Mar. 29, 2000.

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