Method and System for Ultrasonic Fluid Spectral Doppler Imaging

An ultrasonic flow spectral Doppler imaging method, comprising:

• transmitting an ultrasonic beam to an examination object;
• receiving echoes of the ultrasonic beam to obtain an ultrasonic echo signal;
• obtaining an ultrasonic image of a region of interest in the examination object according to the ultrasonic echo signal;
• determining a sampling position in the region of interest;
• obtaining a Doppler spectrum corresponding to the sampling position according to the ultrasonic echo signal;
• drawing a closed box at a position corresponding to the sampling position in the ultrasonic image and drawing an angle correction line associated with the box to form a position displaying mark representing the sampling position;
• displaying the position displaying mark in an ultrasonic blood flow projection image;
• and
• displaying the obtained Doppler spectrum.

An ultrasonic flow spectral Doppler imaging method, comprising:

• transmitting an ultrasonic beam to an examination object;
• receiving echoes of the ultrasonic beam to obtain an ultrasonic echo signal;
• obtaining an ultrasonic image of a region of interest in the examination object according to the ultrasonic echo signal;
• determining a first sampling position in the region of interest and obtaining a first Doppler spectrum corresponding to the first sampling position according to the ultrasonic echo signal;
• determining a second sampling position in the region of interest and obtaining a second Doppler spectrum corresponding to the second sampling position according to the ultrasonic echo signal;
• evaluating a difference between the first Doppler spectrum and the second Doppler spectrum;
• and
• outputting the difference.