Patent ID: 8353835

Claim:
A method of displaying ultrasound images, comprising: a) forming at least one B-mode image of a target object; b) displaying said at least one B-mode image on a screen of a display unit; c) allowing a user to input selection information indicating location and sizes of a plurality of sample volumes on the displayed at least one B-mode through a user input unit; d) forming a plurality of Doppler spectrum images corresponding to each of the plurality of sample volumes, wherein the forming d) includes: d1) providing spectrum models indicating types of Doppler spectrum images, and aliasing levels determined by a number of aliasing pixels and spectrum levels determined by a number of spectrum pixels in the Doppler spectrum images; d2) detecting contours of each Doppler spectrum image; d3) determining spectrum models corresponding to each Doppler spectrum image based on the detected contours; d4) setting a plurality of pixel indices on each Doppler spectrum image in a vertical direction of the base lines; and d5) adjusting the base lines and the pulse repetition frequencies of the Doppler spectrum images based on the determined spectrum models and the pixel indices; and e) displaying the B-mode images together with the Doppler spectrum images at the same time.