用便携式低场MRI进行脑部成像.
W Taylor Kimberly1, Annabel J Sorby-Adams1, Andrew G Webb2
1Department of Neurology and the Center for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Nature reviews bioengineering
|September 14, 2023
概括
便携式低场MRI (LF-MRI) 提供了新的神经成像可能性. 消除噪音和人工智能重建方面的进步提高了LF-MRI图像质量,用于更广泛的临床应用.
科学领域:
- 医疗成像医学成像
- 生物物理学的生物物理.
- 神经科学是一个神经科学.
背景情况:
- 传统的MRI系统受到尺寸,成本和功率要求的限制.
- 便携式低场MRI (LF-MRI) 为传统环境之外的可访问的神经成像提供了一个解决方案.
- 挑战包括LF-MRI中较低的信号噪声比 (SNR),需要先进的处理技术.
研究的目的:
- 探索便携式LF-MRI用于神经成像的潜力.
- 突出技术进步,使高质量的LF-MRI成为可能.
- 讨论LF-MRI的临床影响和未来方向.
主要方法:
- 开发便携式低场MRI硬件.
- 实施电磁噪声消除技术.
- 机器学习算法的应用,从稀疏的k空间数据中进行图像重建.
- 整合新的图像增强方法.
主要成果:
- 现在的LF-MRI系统能够产生临床相关的图像,尽管SNR减少了.
- 技术进步已经克服了LF-MRI以前的局限性.
- 床边成像正在变得可行,扩大神经成像的可访问性.
结论:
- 便携式LF-MRI代表了神经成像可访问性和应用方面的重大进步.
- 硬件,脉冲序列和重建方面的持续创新将进一步提高LF-MRI的实用性.
- LF-MRI承诺将MRI技术民主化,并使新的诊断能力成为可能.
相关概念视频
01:24Magnetic Resonance Imaging
5.2K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
5.2K
01:14Brain Imaging
257
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
257
01:27Imaging Studies IV: Magnetic Resonance Imaging
25
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
25