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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | McAleavey, S.A. Dahl, J.J. Pinton, G.F. Trahey, G.E. |
| Copyright Year | 2003 |
| Description | Author affiliation: Dept. of Biomed. Eng., Duke Univ., Durham, NC, USA (McAleavey, S.A.; Dahl, J.J.; Pinton, G.F.; Trahey, G.E.) |
| Abstract | We have created a system for real-time phase aberration correction functional with a 7.5 MHz, 1/spl times/192 element 1D linear array (Siemens) and a 9.5 MHz, 8/spl times/96 element, 1.75D linear array (Tetrad), using a Siemens Antares scanner. Aberration profiles are estimated with a weighted least squares algorithm. The calculated aberration profiles are used to modify the transmit and receive phasing of array elements. The present implementation requires 0.6 seconds for transmit and receive correction with the 1/spl times/192 array, 1.0 second for receive-only correction on with 8/spl times/96 array, and 1.5 seconds for transmit and receive correction with the 8/spl times/96 array. We present aberrated and corrected images of speckle target phantoms produced with one- and two-dimensional physical aberrators for both arrays. |
| Starting Page | 335 |
| Ending Page | 338 |
| File Size | 1171606 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780379225 |
| DOI | 10.1109/ULTSYM.2003.1293417 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-10-05 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Adaptive arrays MATLAB Focusing Radio frequency Phased arrays Delay Ultrasonic imaging Ultrasonic transducers Biomedical transducers Biomedical imaging |
| Content Type | Text |
| Resource Type | Article |
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