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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xinxin Guo Friboulet, D. Liebgott, H. |
| Copyright Year | 2012 |
| Description | Author affiliation: CREATIS, CNRS UMR 5220, INSERM ၄, Université de Lyon, INSA Lyon, INSA Lyon, Lyon, France (Xinxin Guo; Friboulet, D.) || CREATIS, CNRS UMR 5220, INSERM ၄, Université de Lyon, Université Lyon 1, Lyon, France (Liebgott, H.) |
| Abstract | Echocardiographic acquisition based on point spread function (PSF) with transverse oscillations (TO) has been shown to be an efficient image formation technique for improving the accuracy of motion estimation in the transverse direction (direction perpendicular to the propagation axis). To date, beamforming yielding TO has mainly been developed for acquisitions performed in linear geometry. However, one of the most important applications of motion estimation is cardiac imaging, which implies acquisition done in sectorial geometry. In this framework, this paper describes a new beamformer design method as well as the corresponding implementation allowing for transverse oscillations for sector scan. The proposed method uses a back-propagation (BP) approach. The performance of this beamformer is quantitatively evaluated through numerical simulations. In particular, we show that the obtained PSF are closer to the expected ones as compared to PSF obtained using the conventional Fraunhofer approximation and the associated Fourier relation. |
| Starting Page | 1100 |
| Ending Page | 1103 |
| File Size | 299816 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457718571 |
| ISSN | 19457928 |
| e-ISBN | 9781457718588 |
| DOI | 10.1109/ISBI.2012.6235751 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-05-02 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Geometry Approximation methods Array signal processing Oscillators Ultrasonic imaging Estimation Accuracy back-propagation beamforming echocardiography transverse oscillations |
| Content Type | Text |
| Resource Type | Article |
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