RF SAFETY FOR ULTRA-HIGH FIELD MRI

超高场 MRI 的射频安全

• 批准号: 8362875
• 负责人: John T Vaughan
• 金额: $ 3.03万
• 依托单位: UNIVERSITY OF MINNESOTA
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-06-01 至 2012-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8362875
• 关键词: Family suidae; Funding; Grant; Heating; Human; Image; Magnetic Resonance Imaging; Measures; Modeling; NMR Spectroscopy; National Center for Research Resources; Principal Investigator; Recommendation; Regulation; Research; Research Infrastructure; Resources; Safety; Source; Temperature; Thermodynamics; United States National Institutes of Health; Work; cost; phantom model

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. Dr. Wolfgang Kainz of the FDA and Drs. Shrivastava and Vaughan of the CMRR are investigating safety thresholds and consequences of RF induced heating in 7T and 9.4T MRI. Thermodynamic models, phantoms and porcine models are used to correlate easily measured average SAR to not easily measured temperature. This work will significantly impact the FDA's recommendations and regulations in ultra-high field human imaging. Some support for this study is coming from Vaughan's NIH EB007327

该子项目是利用资源的众多研究子项目之一 由 NIH/NCRR 资助的中心拨款提供。子项目的主要支持 并且子项目的主要研究者可能是由其他来源提供的， 包括其他 NIH 来源。 子项目可能列出的总成本 代表子项目使用的中心基础设施的估计数量， NCRR 赠款不直接向子项目或子项目工作人员提供资金。 FDA 的 Wolfgang Kainz 博士和 Drs。 CMRR 的 Shrivastava 和 Vaughan 正在研究 7T 和 9.4T MRI 中射频感应加热的安全阈值和后果。 热力学模型、体模和猪模型用于将易于测量的平均 SAR 与不易测量的温度相关联。 这项工作将显着影响 FDA 在超高场人体成像方面的建议和法规。 这项研究的一些支持来自沃恩的 NIH EB007327