Systems and methods for beam enhancement

摘要

Beam enhancement through sidelobe reduction and/or mainlobe sharpening is shown. Embodiments utilize dynamic resolution, improved dynamic resolution, and/or enhanced dynamic resolution techniques to synthesize beams, such as ultrasonic beams used in ultrasonic imaging, having desired attributes. Embodiments simultaneously form a first sample beam and a second or auxiliary sample beam for every sample to synthesize enhanced scan beams. According to a dynamic resolution techniques herein a new beam may be formed from the sum of the two sample beams. A synthesized dynamic resolution beam of embodiments has reduced sidelobes with relatively little or no spread of the mainlobe. An enhanced dynamic resolution beam sharpening function can be applied to provide a further enhanced beam, such as to further narrow the mainlobe.

主权项

1. A method of operating an ultrasound system, the method comprising:
segmenting a beam signal into a mainlobe component and a sidelobe component: independently processing at least one of the mainlobe component and the sidelobe component; and recombining the mainlobe component and the sidelobe component as independently processed, wherein recombining the mainlobe component and the sidelobe component provides synthesizing of a beam having a desired shape and geometrical properties, and wherein the desired shape and geometrical properties of the synthesized beam comprise a sharper mainlobe than the segmented beam and a sidelobe adapted to provide a balance between mainlobe resolution and sidelobe level for improved image quality.