Method and apparatus for a geometric aberration transform in an

Details Method and apparatus for a geometric aberration transform in an Method and apparatus for a geometric aberration transform in an

1994-08-05

1996-09-03

Jaworski, Francis

Surgery

Truss

Pad

12866101, 73626, A61B 800, G01N 2900

Patent

active

055514332

ABSTRACT:
A method and an apparatus are provided for storage and retrieval of measured aberration correction values used in adaptive focus ultrasound imaging. The aberration correction values, corresponding to an aberration region in an imaged subject, are measured at a transmit focal depth. The measured aberration correction values, typically delays, from a measurement depth are stored in a geometric aberration transform (GAT.TM.) table and transformed to aberration correction values at other focal depths for correcting the focus of both transmit and receive beamformers. The transformation is accomplished by using a geometric aberration transform (GAT.TM.) index table which retrieves one or more aberration correction values in the table for any desired depth.

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