Methods and apparatus for ultrasonic compound imaging

Details Methods and apparatus for ultrasonic compound imaging Methods and apparatus for ultrasonic compound imaging

2006-03-14

2006-03-14

Casler, Brian L. (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S447000, C600S463000

Reexamination Certificate

active

07011632

ABSTRACT:
Methods and apparatus for achieving a compound ultrasound imaging mode are disclosed. The methods include a step of firing a plurality of ultrasound beams at a single location, receiving first and second echoes, and combining the first and second echoes to form a composite scan line. The following beam parameters may be varied: transmission focus depth, transmission aperture, transmission frequency, and transmission burst length. Echoes may vary in one or both of receive bandwidth and receive center frequency. In one embodiment, transmission focus depth, transmission aperture, and receive center frequency all differ between the beams. A weighting step may be performed before or after the summing step. The apparatus may include vector memory, a compound logic processor for weighting and summing the vectors, and memory for storing the summed vectors.

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