Journal article
Real-time 3-D ultrasound imaging using sparse synthetic aperture beamforming
A method for real-time three-dimensional (3-D) ultrasound imaging using a mechanically scanned linear phased array is proposed. The high frame rate necessary for real-time volumetric imaging is achieved using a sparse synthetic aperture beamforming technique utilizing only a few transmit pulses for each image.
Grating lobes in the two-way radiation pattern are avoided by adjusting the transmit element spacing and the receive aperture functions to account for the missing transmit elements. The signal loss associated with fewer transmit pulses is minimized by increasing the power delivered to each transmit element and by using multiple transmit elements for each transmit pulse.
By mechanically rocking the array, in a way similar to what is done with an annular array, a 3-D set of images can be collected in the time normally required for a single image.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 1998 |
| Pages: | 980-8 |
| ISSN: | 15258955 and 08853010 |
| Types: | Journal article |
| DOI: | 10.1109/58.710573 |
Apertures Array signal processing Gratings Phased arrays Propagation losses Ultrasonic imaging acoustic signal processing array signal processing grating lobe linear phased array mechanical scanning radiation pattern real-time three-dimensional ultrasound imaging sparse synthetic aperture beamforming ultrasonic arrays ultrasonic imaging volumetric imaging
