7T Small Animal MRI Upgrade

7T小动物MRI升级版

• 批准号: 10630418
• 负责人: VINCENT A MAGNOTTA
• 金额: $ 60万
• 依托单位: UNIVERSITY OF IOWA
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-05-01 至 2025-04-30
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10630418
• 关键词: 10 year old; Amplifiers; Animal Model; Animals; Biomedical Engineering; Brain; Cell Nucleus; Contract Services; Development; Disease; Electronics; Equipment; Faculty; Fees; Financial Support; Funding; Future; Grant; Heart; Hour; Image; Institution; Iowa; Libraries; Lung diseases; Magnetic Resonance Imaging; Malignant Neoplasms; Metabolism; Modernization; Nuclear; Performance; Physiologic pulse; Productivity; RF coil; Radiology Specialty; Research; Research Personnel; Research Support; Rodent; Source; Stroke; Structure; System; Tissues; United States National Institutes of Health; Universities; animal imaging; biomedical imaging; college; human imaging; imaging capabilities; imaging facilities; improved; novel; programs; pulmonary function; square foot; tool

The University of Iowa is requesting funds to upgrade our small animal 7T MRI scanner. The existing scanner is now more than 10 years old and several of the hardware components provided are no longer supported with replacement parts scarce. We are proposing an upgrade of the scanner by MR Solutions, which will replace a majority of the scanner electronics while reusing the superconducting magnet, gradient amplifiers (IECO), RF amplifiers (CPC), and RF coils (RapidMRI). The upgraded scanner will provide a number of significant improvements for animal imaging including: 1) higher performance gradients for rodent imaging; 2) support for imaging larger animals; 3) support for additional MR visible nuclei (129Xe and 13C); 4) increase the number of multi-nuclear capable channels from 1 to 8; 5) provide a modern pulse sequence library; and 6) ability to carry a service contract and source replacement parts. The upgraded system would continue to evolve as MR Solutions continues to develop their pulse sequence library and scanner tools. Finally, the upgraded scanner will provide a more stable platform, which is currently being used more than 170 hours per month with a majority of scanner hours in support for NIH grants. The MRRF serves as a Core University Facility and houses the only small animal imaging facilities in the State of Iowa. The scanner supports 18 investigators with 20 NIH funded grants and the addition of a larger gradient coil would enable imaging in larger animal models. The MRRF supports the research program of investigators from 6 colleges and 15 departments across campus. The facility also supports the research efforts from other state institutions (e.g. Iowa State University). These investigators are a highly productive group, which study a variety of diseases including brain development, stroke, heart/lung disease, and cancer. The MRRF is an active research group who are undertaking the development of novel imaging sequences to support our large number of users. This includes novel imaging sequences to assess 1) tissue microstructure, 2) brain function, 3) cancer, 4) lung function, and 5) metabolism. These projects would significantly benefit from the proposed scanner and provide future imaging capabilities for users of the facility. There is strong institution commitment for this equipment. The 7T small animal scanner is located in the $120 million Pappajohn Biomedical Discovery Building (PBDB) and the Iowa Institute for Biomedical Imaging (IIBI) was allocated 31,000 square feet of space in this building for human and animal imaging. To help support the scanner, the Department of Radiology and Biomedical Engineering have recently hired 3 additional faculty who are MR physicists. Finally, the Department of Radiology is providing more than $105,000 to cover the purchase of the upgrade and will provide financial support in case user fees are unable to cover expenses for the facility.

爱荷华大学要求资金升级我们的小动物7T MRI扫描仪。现有 扫描仪现在已有10多年的历史了，提供的一些硬件组件不再 替换零件支持稀缺。我们正在提出Solutions先生对扫描仪的升级， 将更换大多数扫描仪电子设备，同时重用超导磁铁，梯度放大器 （IECO），RF放大器（CPC）和RF线圈（RapidMri）。升级的扫描仪将提供许多 动物成像的重大改进，包括：1）啮齿动物成像的较高性能梯度； 2） 支持成像较大的动物； 3）支持其他可见核（129xe和13c）； 4）增加 从1到8的多核能力通道数量； 5）提供现代的脉冲序列库；和6） 能够携带服务合同和源代码更换零件。升级的系统将继续 随着MR Solutions继续开发其脉冲序列库和扫描仪工具的发展。最后， 升级的扫描仪将提供一个更稳定的平台，目前正在使用超过170小时 一个月的大部分扫描仪小时支持NIH赠款。 MRRF是大学的核心设施，并设有 爱荷华州。扫描仪支持18名NIH资助的赠款的调查员，并增加了较大的调查员 梯度线圈将在较大的动物模型中启用成像。 MRRF支持 来自校园的6个学院和15个系的调查人员。该设施还支持研究 其他国家机构（例如爱荷华州立大学）的努力。这些调查人员是一个高产的 研究组研究了各种疾病，包括大脑发育，中风，心脏/肺病和癌症。 MRRF是一个活跃的研究小组，他正在开发新的成像序列 支持我们的大量用户。这包括新的成像序列以评估1）组织微观结构， 2）大脑功能，3）癌症，4）肺功能和5）代谢。这些项目将大大受益 拟议的扫描仪并为该设施的用户提供未来的成像功能。 该设备有强大的机构承诺。 7t小动物扫描仪位于 1.2亿美元的Pappajohn生物医学发现大楼（PBDB）和爱荷华州生物医学成像研究所 （IIBI）在这座建筑物中分配了31,000平方英尺的空间，用于人类和动物成像。帮助支持 扫描仪，放射学和生物医学工程系最近聘请了3位教职员工 谁是物理学家。最后，放射学系将提供超过105,000美元以覆盖 购买升级，并将在用户费用无法支付费用的情况下提供财务支持 设施。