Panoramic elasticity ultrasound imaging
AssigneeSiemens Medical Solutions USA, Inc.
InventorsLiexiang Fan, Patrick Von Behren
Life of this patent
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Abstract
Using compression, tissue elasticity data from two or more different fields of view are acquired. Since different amounts of compression may be used for the different fields of view, the dynamic range of the elasticity data is updated. A panoramic elasticity image is generated from the updated elasticity data of multiple fields of view. A panoramic elasticity image represents the combined fields of view for the elasticity data.
Claims4
In a non-transitory computer readable storage medium having stored therein data representing instructions executable by a programmed processor for extended field of view ultrasound imaging, the storage medium comprising instructions for:
- generating a panoramic elasticity image from two or more frames of elasticity data acquired with a transducer placed at two or more different positions, the elasticity data acquired in response to compression force at the two or more different positions, each of the frames of elasticity data representing overlapping but different regions, the different regions being laterally offset from each other, each of the frames of elasticity data representing elasticity of tissue in the respective region,
- distinguishing between moving the transducer in a lateral direction from moving the transducer in an axial direction, the lateral direction corresponding to a panoramic field of view for the panoramic elasticity image and the axial direction corresponding to the compression force,
- determining an amount of correlation between frames of data by determining a mean or variance of correlation between the frames of data, and
- selecting a map for the panoramic elasticity image by mapping elasticity data where the amount of correlation is above a threshold and mapping B-mode data where the amount of correlation is below the threshold.
Dependencies are inferred from the claim text.