한빛사논문
- 조회466
Eun-Yeong Park1†, Xiran Cai1‡, Josquin Foiret1, Hanna Bendjador1§, Dongwoon Hyun1, Brett Z. Fite1, Robert Wodnicki2, Jeremy J. Dahl1, Robert D. Boutin1, Katherine W. Ferrara1*
1Department of Radiology, Stanford University, Stanford, CA 94305,USA.
2Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
*Correspondingauthor : KatherineW. Ferrara
†These authors contributed equally to this work.
‡Present address: School of Information Scienceand Technology, ShanghaiTech University, Shanghai, China, 201210.
§Present address: Boston Consulting Group, San Francisco, CA 94111, USA
Abstract
Volumetric ultrasound imaging has the potential for operator-independent acquisition and enhanced field of view. Panoramic acquisition has many applications across ultrasound; spanning musculoskeletal, liver, breast, and pediatric imaging; and image-guided therapy. Challenges in high-resolution human imaging, such as subtle motion and the presence of bone or gas, have limited such acquisition. These issues can be addressed with a large transducer aperture and fast acquisition and processing. Programmable, ultrafast ultrasound scanners with a high channel count provide an unprecedented opportunity to optimize volumetric acquisition. In this work, we implement nonlinear processing and develop distributed beamformation to achieve fast acquisition over a 47-centimeter aperture. As a result, we achieve a 50-micrometer -6-decibel point spread function at 5 megahertz and resolve in-plane targets. A large volume scan of a human limb is completed in a few seconds, and in a 2-millimeter dorsal vein, the image intensity difference between the vessel center and surrounding tissue was ~50 decibels, facilitating three-dimensional reconstruction of the vasculature.
논문정보
- Research article
- 2023년 06월 (BRIC 등록일 2023-06-12)
- 국외 연구진
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