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Method and apparatus for a geometric aberration transform in an adaptive focusing ultrasound beamformer system
Method and apparatus for a geometric aberration transform in an adaptive focusing ultrasound beamformer system
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机译:自适应聚焦超声波束形成器系统中的几何像差变换的方法和装置
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摘要
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™) 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™) index table which retrieves one or more aberration correction values in the table for any desired depth.
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