Portable three-dimensional ultra-low field MRI

便携式三维超低场MRI

• 批准号: DP170104282
• 负责人: Prof David Reutens
• 金额: $ 18.75万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-01-01 至 2019-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP170104282
• 关键词: Portable; three; dimensional; ultra; low

This project aims to address low signal-to-noise ratio in ultra-low-field (ULF) MRI, using dynamic, mechanically-operated small permanent magnet arrays to generate magnetic fields needed for pre-polarisation and spatial encoding. Superconducting magnets make conventional MRI scanners too heavy and expensive for much of the world’s population. ULF MRI instruments offer image contrast mechanisms, are less costly and potentially portable, so can be used in unconventional situations. This project will design, construct and evaluate an instrument capable of three-dimensional 3D ULF-MRI. This technology is expected to be useable in field hospitals and emergency settings, and to benefit fields including magnetic refrigeration and remote sensing.

该项目旨在解决超低场（ULF）MRI中的低信噪比问题，使用动态，机械操作的小型永磁体阵列来产生预极化和空间编码所需的磁场。超导磁体使得传统的MRI扫描仪对于世界上大多数人口来说过于沉重和昂贵。ULF MRI仪器提供了图像对比机制，成本较低，可能是便携式的，因此可以在非常规情况下使用。本项目将设计、构建和评估能够进行三维3D ULF-MRI的仪器。这项技术有望在野战医院和紧急情况下使用，并使磁制冷和遥感等领域受益。