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Brain Imaging

Brain Imaging

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...

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Updated: Jun 26, 2025

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

扩散张力脑成像在0.55T:一个可行性研究.

Hao-Ting Kung¹, Sophia X Cui², Jonas T Kaplan³

¹Signal and Image Processing Institute, Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, California, USA.

Magnetic resonance in medicine

|May 10, 2024

概括

此摘要是机器生成的。

在0.55T的扩散张力成像对于脑部扫描是可行的,显示与3T数据有很强的相关性. 降噪策略提高了可重复性,使得高分辨率扩散MRI在较低场强度下成为可能.

关键词:

有限制的重建重建.拒绝的意思是拒绝.扩散磁力共振成像 (MRI) 扩散低场核磁共振 (MRI) 是一种低场核磁共振.

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Last Updated: Jun 26, 2025

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

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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.

背景情况:

扩散张力成像 (DTI) 提供了对大脑微观结构的洞察.
较高的磁场强度 (例如,3T) 通常为MRI提供更好的信号噪声比 (SNR).

研究的目的:

评估扩散张力脑成像在较低磁场强度 (0.55T) 的可行性.
以0.55T获得的DTI结果与在标准3T扫描仪获得的结果进行比较.

主要方法:

从0.55T和3T的5名健康受试者获得2毫米同位素分辨率DTI数据.
在0.55T数据中采用了SNR增强的关节重建方法.
估计和比较定量扩散张力参数和评估的测试重复测试可重复性.

主要成果:

从0.55T数据的扩散张力参数,在SNR增强后,与3T数据有很强的相关性.
试验复试分析表明,在应用的重建技术下,0.55T DTI参数的可重复性得到改善.

结论:

人类大脑的高分辨率体内扩散MRI可在0.55T时实现.
有效的降噪策略对于在较低场强度下成功的DTI至关重要.