Ultrasound elastography method and system

An ultrasound elastography method, comprising:

• exciting an ultrasound probe to transmit ultrasound waves to a body tissue under examination and receive ultrasound echoes to obtain a first ultrasound echo signal, wherein the ultrasound probe comprises an ultrasound transducer provided with multiple array elements;
• obtaining an ultrasound image of the body tissue under examination according to the first ultrasound echo signal;
• displaying the ultrasound image;
• determining a region of interest according to the ultrasound image;
• controlling a vibrator to vibrate to generate a shear wave at least partially propagating in the region of interest in the body tissue under examination;
• exciting at least a part of the array elements of the ultrasound transducer to form an ultrasound beam covering the region of interest in which the shear wave is propagating;
• receiving ultrasound echoes from the region of interest to obtain an ultrasound echo signal;
• and
• obtaining a propagation path of the shear wave in the region of interest according to the ultrasound echo signal.