AI Article Synopsis
- A new method helps align two ultrasound transducers into one scan plane using a wedge phantom for visual feedback.
- Calibration techniques ensure the transducers are correctly aligned, with errors kept below 1° in rotation and 1 mm in translation after multiple adjustments.
- This dual transducer system is effective for imaging soft tissues like the breast and can enhance image quality through techniques like spatial compounding.
Article Abstract
We present a novel method of aligning two orthogonal ultrasound transducers into a coincident scan plane. A wedge phantom design provides visual feedback to the user to facilitate alignment. Calibration provides the transformation from one transducer to the other as well as a measure of the residual error in alignment. Mean alignment error is shown to be under 1° in the rotation axes and 1 mm in translation after repeated manual alignments. The repeatability of wedge based calibration has similar results compared with N-fiducial based calibration. The accuracy of the calibration for mapping points from one transducer to the other is found to have a mean error of 1.6 mm. The dual transducer system is well suited to imaging anatomy such as the breast and may be used for spatial compounding for improving B-mode images and motion estimation compounding for improving elastography results.
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| http://dx.doi.org/10.1016/j.ultrasmedbio.2010.10.025 | DOI Listing |
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