【摘 要】
：
Background, Motivation and Objective This paper presents an implementation of a real-time duplex synthetic aperture imaging system on a commercially available hand-held device. The implementation incl
【机 构】
：
Electrical Engineering, Technical University of Denmark, Lyngby, Denmark
论文部分内容阅读
Background, Motivation and Objective This paper presents an implementation of a real-time duplex synthetic aperture imaging system on a commercially available hand-held device. The implementation includes real-time wireless reception of ultrasound signals and GPU processing for B-mode and Color Flow Imaging (CFM) imaging. The objective of the work is to investigate the implementation complexity and processing demands for CFM using the principle of Synthetic Aperture Sequential Beamforming (SASB) and a time shift estimator. The overall goal is to include flow imaging capabilities into a synthetic aperture scanner connected to a wireless probe.
其他文献
Background, Motivation and Objective Intravascular photoacoustic (IVPA) imaging can visualize the coronary atherosclerotic plaque composition on the basis of the optical absorption contrast.Our ex viv
Background, Motivation and Objective Simple equivalent circuits for CMUTs are not adequate especially when the devices are part of a large imaging array with crosstalk. Although accurate large signal
Background, Motivation and Objective The number of transmit and receive channels needed to perform real-time 3-D ultrasound imaging can be greatly reduced if row-column addressed 2-D transducer arrays
Background, Motivation and Objective For high performance piezoelectrics, few technology options are currently available. Recent study projected a novel sound pressure sensor using a ferroelectrics-ga
Background, Motivation and Objective Previously, we have devised a new high-frame-rate flow imaging paradigm called color encoded speckle imaging (CESI) that offers, at sub-ms time resolution, duplex
Background, Motivation and Objective Ultrasonic flaw detection in NDE applications is a challenging problem due to suppression of flaw echoes within the high scattering noise (clutter) echoes.Advanced
目的 探讨高铁作业者血清HSP70水平与异常心电图之间的关联.方法 收集职业性体检的高铁作业者176例,并设正常对照组.ELISA法检测血清HSP70含量.Logistic回归筛选异常心电图的危险因素.结果 高温组的血清HSP70水平(0.157±0.133)ng/ml比正常对照组(0.097±0.134)ng/ml高,差异有统计学意义(t=4.26,P＜0.01),高温组异常心电图检出率26.1
进入21世纪以来,随着我国经济社会的飞速发展,我国城乡居民的工作节奏和生活方式都发生了很大变化,心脑血管疾病发生率呈现井喷趋势,并成为威胁我国人民健康的主要慢性疾病,心脑血管病导致的死亡已成为我国人群死亡的主要原因,而且其发病率和死亡率呈逐渐上升趋势,成为威胁人们健康的严重问题[1].无论是在亚洲还是欧美国家,心脑血管疾病也是排在首位的死亡因素.因此零级预防心脑血管疾病,成为当今医务工作者首要关注
目的 探讨社区空巢老人主观幸福感与社会支持、应对方式的关系。方法 以225名社区空巢老人为研究对象，采用纽芬兰纪念大学幸福度量表、领悟社会支持量表和特质应对方式问卷进行调查。结果 领悟社会支持总分及其各维度与主观幸福感呈正相关，积极应对与主观幸福感呈正相关，消极应对与主观幸福感呈负相关。积极应对和家庭内支持是主观幸福感的正向预测因子。结论 社会支持和应对方式是社区空巢老人主观幸福感重要的影响因素。
Background, Motivation and Objective In August 2014 the ESA spacecraft Rosetta encountered the comet 67P/Churyumov-Gerasimenko. Rosetta carried the lander Philae that landed on the comets nucleus onNo