Ultrasonic imaging apparatus and method for detecting shear index of vascular wall using ultrasonic waves

A method for detecting a vascular wall shear index using ultrasonic waves, comprising:

• transmitting ultrasonic waves to a region of interest containing a vessel;
• receiving echoes to obtain echo signals;
• obtaining an ultrasonic image according to the echo signals;
• obtaining particle jet velocities at multiple points in the vessel according to the echo signals, wherein the particle jet velocity comprises a velocity magnitude and a velocity direction;
• determining a vascular wall in the ultrasonic image;
• obtaining a measurement position on the vascular wall;
• calculating the vascular wall shear index at the measurement position according to the particle jet velocities at a plurality of points near the measurement position;
• and
• displaying the ultrasonic image and the vascular wall shear index.

A method for detecting a vascular wall shear index using ultrasonic waves, comprising:

• transmitting ultrasonic waves to a region of interest containing a vessel;
• receiving echoes to obtain echo signals;
• obtaining an ultrasonic image according to the echo signals;
• obtaining particle jet velocities at multiple points in the vessel according to the echo signals, wherein the particle jet velocity comprises a velocity magnitude and a velocity direction;
• determining a vascular wall and a measurement position in the ultrasonic image;
• calculating the vascular wall shear index at the measurement position according to the particle jet velocities at a plurality of points near the measurement position of the vascular wall;
• generating an index mark, wherein an attribute of the index mark corresponds to a calculated value of the vascular wall shear index;
• and
• displaying the index mark corresponding to the measurement position at the measurement position on the vascular wall.