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Ultrasound pulse-wave doppler measurement of blood flow velocity and/or turbulence

  • US 9,204,858 B2
  • Filed: 02/04/2011
  • Issued: 12/08/2015
  • Est. Priority Date: 02/05/2010
  • Status: Expired due to Fees
First Claim
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1. A method for displaying blood flow information concerning blood in a vessel, the method comprising:

  • generating ultrasound signals by using an ultrasound transducer;

    producing, in electronic format, an ultrasound image of the vessel from the ultrasound signals, wherein the ultrasound image includes a representation of the vessel;

    displaying the ultrasound image via a display device;

    constructing and displaying a user-positionable cursor overlaid over a sub-portion of the representation of the vessel in the displayed ultrasound image, wherein the user-positionable cursor identifies a single sub-sample volume of interest in the vessel;

    obtaining, with a controller and for each of a plurality of different time intervals, a different true velocity vector of blood passing through the same single sub-sample volume located in the vessel wherein the true velocity vectors are determined from the ultrasound signals;

    constructing a plurality of vector-markers, each vector-marker including a graphical indicator that indicates a magnitude and an angle of a different one of the true velocity vectors, wherein each of the graphical indicators includes an arrow with a linear line segment having a first end and a second opposing end and a head disposed at the first end;

    displaying, concurrently, the arrows with their second ends at a same spatial point that is located within the same single sub-sample volume, wherein each of the arrows extends from the same point that is located within the same single sub-sample volume, and wherein all of the concurrently displayed plurality of the graphical indicators are concurrently visible.

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