Method for Obtaining a Three-Dimensional Velocity Measurement of a Tissue

A method for obtaining a three-dimensional velocity measurement of a tissue from an ultrasound device comprising:

• calculating a set of correlation-velocity transfer functions from a first image plane and a second image plane, each image plane characterizing the tissue;
• collecting, using the ultrasound device, an ultrasound measurement image characterizing the tissue;
• determining a set of in-plane velocity vectors and a set of speckle correlation values mapped to the ultrasound measurement image;
• determining a set of out-of-plane velocity vectors, corresponding to the set of in-plane velocity vectors, by applying the set of correlation-velocity transfer functions to the set of speckle correlation values;
• and
• generating, for the ultrasound measurement image, a three-dimensional velocity measurement from the sets of in-plane and out-of-plane velocity vectors.

A system for obtaining a three-dimensional velocity measurement of a tissue comprising:

• an ultrasound device configured to collect a first set of calibration imagery in a first image plane, a second set of calibration imagery in a second image plane, and an ultrasound measurement image;
• a processor configured to:
• calculate a set of correlation-velocity transfer functions from a first image plane and a second image plane, each image plane characterizing the tissue,
• determine a set of in-plane velocity vectors and a set of speckle correlation values mapped to the ultrasound measurement image,
• determine a set of out-of-plane velocity vectors, corresponding to the set of in-plane velocity vectors, by applying the set of correlation-velocity transfer functions to the set of speckle correlation values, and
• generate, for the ultrasound measurement image, a three-dimensional velocity measurement from the sets of in-plane and out-of-plane velocity vectors;
• and
• an interface configured to display the three-dimensional velocity measurement.