• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Ultrasound research scanner for real-time synthetic aperture data acquisition
【24h】

Ultrasound research scanner for real-time synthetic aperture data acquisition

机译：超声波研究扫描仪，用于实时合成孔径数据采集

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Conventional ultrasound systems acquire ultrasound data sequentially one image line at a time. The architecture of these systems is therefore also sequential in nature and processes most of the data in a sequential pipeline. This often makes it difficult to implement radically different imaging strategies on the platforms and makes the scanners less accessible for research purposes. A system designed for imaging research flexibility is the prime concern. The possibility of sending out arbitrary signals and the storage of data from all transducer elements for 5 to 10 seconds allows clinical evaluation of synthetic aperture and 3D imaging. This paper describes a real-time system specifically designed for research purposes. The system can acquire multichannel data in real-time from multi-element ultrasound transducers, and can perform some real-time processing on the acquired data. The system is capable of performing real-time beamforming for conventional imaging methods using linear, phased, and convex arrays. Image acquisition modes can be intermixed, and this makes it possible to perform initial trials in a clinical environment with new imaging modalities for synthetic aperture imaging, 2D and 3D B-mode, and velocity imaging using advanced coded emissions. The system can be used with 128-element transducers and can excite 128 transducer elements and receive and sample data from 64 channels simultaneously at 40 MHz with 12-bit precision. Two-to-one multiplexing in receive can be used to cover 128 receive channels. Data can be beamformed in real time using the system's 80 signal processing units, or it can be stored directly in RAM. The system has 16 Gbytes RAM and can, thus, store more than 3.4 seconds of multichannel data. It is fully software programmable and its signal processing units can also be reconfigured under software control. The control of the system is done over a 100-Mbits/s Ethernet using C and Matlab. Programs for doing, e.g., B-mode imaging can be written directly in Matlab and executed on the system over the net from any workstation running Matlab. The overall system concept is presented along with its implementation and examples of B-mode and in vivo synthetic aperture flow imaging.
机译：常规超声系统一次一次依次获取超声数据。因此，这些系统的体系结构本质上也是顺序的，并按顺序的流水线处理大多数数据。这通常使在平台上实施根本不同的成像策略变得很困难，并且使得出于研究目的而难以使用扫描仪。设计用于成像研究灵活性的系统是首要关注的问题。从所有换能器元件发出任意信号以及将数据存储5到10秒的可能性允许对合成孔径和3D成像进行临床评估。本文介绍了专门为研究目的而设计的实时系统。该系统可以从多元素超声换能器实时获取多通道数据，并且可以对获取的数据进行一些实时处理。该系统能够使用线性，相控和凸阵列对常规成像方法执行实时波束形成。可以将图像采集模式混合在一起，这使得可以在临床环境中使用用于合成孔径成像，2D和3D B模式以及使用高级编码发射的速度成像的新成像模式进行初始试验。该系统可与128个元素的换能器一起使用，并能激发128个换能器元素，并以40位和12位精度同时从64个通道接收和采样数据。接收中的一对一多路复用可用于覆盖128个接收通道。数据可以使用系统的80个信号处理单元实时进行波束成形，也可以直接存储在RAM中。该系统具有16 GB的RAM，因此可以存储3.4秒以上的多通道数据。它是完全可以通过软件编程的，其信号处理单元也可以在软件控制下重新配置。使用C和Matlab在100 Mbit / s以太网上完成系统控制。可以在Matlab中直接编写用于进行B模式成像的程序，并在任何运行Matlab的工作站上通过网络在系统上执行该程序。介绍了整个系统概念及其实现方式以及B模式和体内合成孔径流成像的示例。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号