相关实验视频
Updated: Sep 17, 2025
08:51
Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
9.2K
在9.4 T时用于神经科学的小脑成像
W van der Zwaag1,2, D H Y Tse3, B A Poser4
1Spinoza Centre for Neuroimaging, Royal Netherlands Academy for Arts and Sciences, Amsterdam, The Netherlands.
Magnetic resonance in medicine
|June 28, 2025
概括
高场9.4特斯拉核磁共振 (MRI) 能够对人类小脑结构和功能进行详细的可视化. 这种先进的成像协议适用于神经科学实验,提供增强的信号噪声比和血液氧气水平依赖的灵敏度.
科学领域:
- 神经成像是一种神经成像.
- 磁共振成像 (MRI) 是一种磁共振成像技术.
- 小脑神经科学是神经科学.
背景情况:
- 小脑在运动控制,认知和情绪方面发挥着至关重要的作用.
- 高场MRI提供了更高的信号噪声比 (SNR) 和BOLD灵敏度.
- 之前的研究已经探索了用于大脑成像的高场MRI,但小脑的具体协议不那么成熟.
研究的目的:
- 研究使用9.4特斯拉 (T) 的MRI协议在体内可视化人类小脑结构和功能的可行性.
- 评估该协议对神经科学实验的适用性.
主要方法:
- 六名健康参与者使用9.4T获取协议进行了MRI扫描.
- 功能性成像包括0.8和1.0毫米同位素分辨率的血氧水平依赖 (BOLD) 权重的3D回声平面成像 (EPI).
- 高分辨率结构成像 (0.4毫米MP2RAGE) 覆盖了整个小脑,用于产生皮质表面.
主要成果:
- 扫描时间大约为1小时,耐受性很好.
- 一个通用的B1闪光为灰白质细分和小脑表面生成提供了足够的对比度.
- 一个运动任务范式在双边大脑叶中引起了一致的BOLD反应.
结论:
- 9.4TMRI是可行的神经科学实验在人类小脑.
- 在9.4T时,增强的SNR和BOLD灵敏度提高了结构和功能成像.
- 这种技术有助于生成详细的小脑皮层表面和功能数据.
相关概念视频
01:27Imaging Studies IV: Magnetic Resonance Imaging
59
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,...
59
01:14Brain Imaging
320
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...
320
01:24Magnetic Resonance Imaging
7.2K
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...
7.2K
01:14Imaging Studies I: CT and MRI
455
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...
455
01:27Imaging Studies III: Computed Tomography
56
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
56
01:21Imaging Studies for Cardiovascular System IV: CMRI
140
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,...
140