REDUCING IMAGING TIME OF TIME-RESOLVED, 3DPIC WITH 2D AUTOCALIBRATED PI

使用 2D 自动校准 PI 缩短时间分辨 3DPIC 的成像时间

• 批准号: 8362940
• 负责人: MARCUS T ALLEY
• 金额: $ 1.95万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-04-01 至 2012-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8362940
• 关键词: 3-Dimensional; Address; Adoption; Annual Reports; Area; Blood Vessels; Clinical; Dimensions; Funding; Grant; Image; Magnetic Resonance; Magnetic Resonance Imaging; National Center for Research Resources; Phase; Principal Investigator; Reading; Research; Research Infrastructure; Resources; Scanning; Slice; Source; Techniques; Technology; Time; United States National Institutes of Health; Visit; Work; abstracting; cost; data acquisition

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. Time-resolved 3-dimensional phase-contrast MR imaging (3D-PC MRI) has developed as an active area of research for vascular imaging because of its ability to acquire directional flow information along all three principle axes. While 3D-PC MRI shows potential in a wide range of applications, in general the clinical adoption of this approach for routine vascular imaging has been hampered by the long acquisition times inherent in the technique. Several groups have addressed this issue by using parallel imaging to accelerate data acquisition in one dimension. In this work we demonstrate the ability to perform auto-calibrated parallel imaging in both the in-plane and slice directions to significantly reduce the overall scan time. To read about other projects ongoing at the Lucas Center, please visit http://rsl.stanford.edu/ (Lucas Annual Report and ISMRM 2011 Abstracts)

这个子项目是许多利用资源的研究子项目之一 由NIH/NCRR资助的中心拨款提供。子项目的主要支持 而子项目的主要调查员可能是由其他来源提供的， 包括其它NIH来源。 列出的子项目总成本可能 代表子项目使用的中心基础设施的估计数量， 而不是由NCRR赠款提供给子项目或子项目工作人员的直接资金。 时间分辨三维相衬磁共振成像（3D-PC MRI）已经发展成为一个活跃的研究领域， 血管成像，因为其能够沿所有三个主轴沿着获取定向流动信息。 虽然3D-PC MRI显示出广泛的应用潜力，一般来说，临床上采用这种方法进行常规血管造影， 成像受到该技术固有的长采集时间的阻碍。 几个团体已经解决了这个问题 通过使用并行成像来加速一维数据采集。在这项工作中，我们证明了能力， 在平面内和切片方向上执行自动校准的并行成像，以显著减少整体扫描 时间 要了解卢卡斯中心正在进行的其他项目，请访问http://rsl.stanford.edu/ （卢卡斯年度报告和 ISMRM 2011摘要）