Conference paper
Duplex synthetic aperture imaging with tissue motion compensation
This paper investigates a method for tissue motion estimation and compensation in synthetic transmits aperture imaging. The approach finds the tissue velocity and the direction of the motion at very tissue region by cross-correlating high resolution lines beamformed along multiple directions at each image points.
Compensation is applied in the beamformer by tracking the image points using the velocity and angle estimates from the closest estimation point. Simulation results using Field II show nearly perfect motion compensation with no appreciable difference in contrast resolution after compensation. Phantom measurements show similar performance with differences in contrast resolution of 29% and 0.61% before and after compensation, respectively.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2003 |
| Pages: | 1569-1573 |
| Proceedings: | 2003 IEEE Ultrasonics Symposium |
| Series: | I E E E International Ultrasonics Symposium. Proceedings |
| ISBN: | 0780379225 and 9780780379220 |
| ISSN: | 15513025 and 10510117 |
| Types: | Conference paper |
| DOI: | 10.1109/ULTSYM.2003.1293207 |
| ORCIDs: | Jensen, Jørgen Arendt |
Chirp modulation Field II High-resolution imaging Image quality Image resolution Imaging phantoms Motion compensation Motion estimation Phased arrays Spatial resolution Ultrasonic imaging angle estimates beamformer compensation contrast resolution cross-correlating lines duplex synthetic aperture imaging estimation point high resolution lines image points imaging motion compensation motion estimation multiple directions phantom measurements phantoms synthetic transmits aperture imaging tissue engineering tissue motion compensation tissue motion estimation tissue region tissue velocity velocity estimates
