相关实验视频
Updated: Jan 16, 2026
09:14
Cardiac Magnetic Resonance Imaging at 7 Tesla
Published on: January 6, 2019
12.2K
超低场MRI:在现代成像中,大卫对戈利亚特的挑战
Cesare Gagliardo1,2, Paola Feraco3, Eleonora Contrino4,5
1Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, Via del Vespro, 129, 90127, Palermo, Italy. cesare.gagliardo@unipa.it.
La Radiologia medica
|September 26, 2025
概括
超低场磁共振成像 (ULF-MRI) 正在以改进的技术重新出现,提供更安全,便携和可访问的诊断成像. 这篇评论探讨了ULF-MRI.
科学领域:
- 医疗成像医学成像
- 生物物理学的生物物理.
- 生物医学工程 生物医学工程
背景情况:
- 运行在0.2特斯拉以下的超低场磁共振成像 (ULF-MRI) 正在经历复苏.
- ULF-MRI的传统局限性,包括低信号和对比度和噪声比率,正被技术进步所克服.
- 高和超高场MRI系统目前主导诊断领域.
研究的目的:
- 审查ULF-MRI的物理原理,技术进步和临床应用.
- 与其他成像方式相比,分析ULF-MRI的独特优势和利基.
- 讨论ULF-MRI临床翻译的未来方向和挑战.
主要方法:
- 一个叙事综述综合ULF-MRI现有文献.
- 在主要的科学数据库 (PubMed,Scopus,IEEE Xplore,Google Scholar) 进行了专注的文献搜索,截至2025年8月11日.
- 关键词结合了ULF-MRI的硬件,软件和临床方面,包括基于科学严谨性和相关性.
主要成果:
- 磁铁设计,射频线圈,脉冲序列和基于人工智能的重建方面的最新进展显著提高了ULF-MRI图像质量.
- ULF-MRI提供了优势,如降低易受物体的敏感性,使用金属植入物进行安全成像,低功耗和便携性.
- 对比分析强调ULF-MRI在可访问的诊断成像中的独特作用.
结论:
- ULF-MRI在医学成像中呈现出一种可持续和民主化的力量,扩大了对MRI的访问.
- 该技术有可能用于护理点应用,解决对可访问的成像解决方案的需求.
- 进一步的研究和开发对于克服临床翻译方面的挑战至关重要.
相关概念视频
01:24Magnetic Resonance Imaging
9.1K
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...
9.1K
01:27Imaging Studies IV: Magnetic Resonance Imaging
222
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,...
222
01:21Imaging Studies for Cardiovascular System IV: CMRI
311
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
311
01:14Imaging Studies I: CT and MRI
795
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
795