Low-Cost High-Temperature Superconducting MRI System

低成本高温超导核磁共振系统

• 批准号: 7120491
• 负责人: Evangelos Trifon Laskaris
• 金额: $ 69.7万
• 依托单位: GENERAL ELECTRIC GLOBAL RESEARCH CTR
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-30 至 2008-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7120491
• 关键词: bioimaging /biomedical imaging; biomedical equipment development; bone imaging /visualization /scanning; clinical biomedical equipment; clinical research; cryoscience; diagnosis quality /standard; evaluation /testing; heat; human subject; image enhancement; magnetic field; magnetic resonance imaging; method development; musculoskeletal disorder diagnosis; orthopedics; patient oriented research; radiodiagnosis; superconductivity

DESCRIPTION (provided by applicant): The expense involved in installing and providing cryogen service to current superconducting MRI systems has limited their widespread distribution, especially in less populous regions of the country, as well as in underdeveloped countries. The MRI scanners found in these areas are most often of the low field (0.2-0.35T) type using Permanent Magnet (PM) technology. These systems have a lower image quality and are not cost-effective when compared with superconducting systems. The objective of this program is to develop enabling technologies for a low-cost, easily siteable superconducting MRI system with a magnetic field strength and image quality comparable to existing solenoidal superconducting systems of 1.0 - 1.5 T magnetic field strength. The system will be easily siteable in underdeveloped areas since it will not require liquid cryogens and will be designed to survive power outages with minimal operator intervention. The program will: 1) Develop key magnet technologies for cryogen-free operation and power-outage survivability. 2) Develop key technologies for PITS wire including a joining method. 3) Prove the developed technologies by building an orthopedic imaging system. 4) Evaluate the performance of the orthopedic imaging system in terms of image quality and system reliability.

描述（由申请人提供）： 为当前的超导MRI系统安装和提供低温服务涉及的费用限制了它们的广泛分布，尤其是在该国人口较少的地区以及不发达的国家中。在这些区域中发现的MRI扫描仪通常是使用永久磁铁（PM）技术的低场（0.2-0.35T）类型的。与超导系统相比，这些系统的图像质量较低，并且不具有成本效益。该程序的目的是为具有磁场强度和图像质量与现有的1.0-1.5 t磁场强度相当的磁场强度和图像质量提供磁场强度和图像质量的低成本，易于静止的超导系统。该系统将在欠发达的地区很容易静坐，因为它不需要液体冷冻剂，并且将设计用于在最小的操作员干预下生存停电。该程序将： 1）开发用于无低温操作和电力出现生存能力的关键磁铁技术。 2）开发坑线的关键技术，包括连接方法。 3）通过构建骨科成像系统来证明开发的技术。 4）根据图像质量和系统可靠性评估骨科成像系统的性能。