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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Keen, C. Gauss, R. Fernandez, A. Trahey, G. |
| Copyright Year | 2002 |
| Description | Author affiliation: Dept. of Biomed. Eng., Duke Univ., Durham, NC, USA (Keen, C.) |
| Abstract | Harmonic ultrasonic imaging is often qualitatively better in the clinical setting than normal ultrasonic imaging in the same frequency range. One possible factor in the differential image quality is the degree of aberration present in the imaged tissue. This work presents initial results of a quantitative comparison of normal and harmonic imaging in phantoms with aberration. We acquired single element RF data using an 8/spl times/128 array in normal (transmit frequency 6.7 MHz) and harmonic (transmit frequency 3.8 MHz) imaging modes. The multirow array allows a finer sampling of the aberrator as compared to a linear array. Estimates of apparent aberrator strength, apparent sound speed, and beam shape are compared for normal and harmonic data. Results demonstrate that the apparent aberration is generally greater for the normal mode than for the harmonic mode. |
| Sponsorship | IEEE Signal Processing Soc |
| Starting Page | 441 |
| Ending Page | 444 |
| File Size | 257621 |
| Page Count | 4 |
| File Format | |
| ISBN | 078037584X |
| DOI | 10.1109/ISBI.2002.1029289 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-07-07 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Ultrasonic imaging Frequency Imaging phantoms Image sampling Acoustic beams Velocity measurement Shape measurement Biomedical engineering Biomedical imaging Medical diagnostic imaging |
| Content Type | Text |
| Resource Type | Article |
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