Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Local Attraction01:22

Local Attraction

Local attraction refers to disturbances in compass readings caused by magnetic influences from nearby objects such as metal fences, buried pipes, vehicles, buildings, power lines, or natural iron ore deposits. Small items like wristwatches, steel tools, or belt buckles can also interfere with the compass by creating local magnetic fields that distort the Earth's natural magnetic field. These distortions lead to inaccurate readings, posing navigation and land surveying challenges.Local...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Temporal Response Function-Driven Representational Similarity Analysis for Speech Perception Decoding with MEG and EEG.

Biology·2026
Same author

Environment-Driven Synthetic Baseline Analysis and Optimization in Joint Measurement OPM-MEG Arrays.

Bioengineering (Basel, Switzerland)·2026
Same author

Decoding Motor States from Phase-Amplitude Coupling Measured by OPM-MEG.

Biosensors·2026
Same author

Machine Learning-Based Magnetocardiography Model Aids in Diagnosing Non-ST-Segment Elevation Acute Coronary Syndrome in Acute Chest Pain.

Balkan medical journal·2026
Same author

Subject-Independent Depression Recognition from EEG Using an Improved Bidirectional LSTM with Dynamic Vector Routing.

Bioengineering (Basel, Switzerland)·2026
Same author

Atypical Resting-State and Task-Evoked EEG Signatures in Children with Developmental Language Disorder.

Bioengineering (Basel, Switzerland)·2026

相关实验视频

Updated: Jun 16, 2026

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.3K

通过基于磁双极的传感器定位与刚性线圈结构和光学方向约束来实现精确的OPM-MEG联合注册.

Weinan Xu1, Wenli Wang1, Fuzhi Cao1

  • 1School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.

Bioengineering (Basel, Switzerland)
|December 30, 2025
PubMed
概括

这项研究引入了一种混合方法,用于精确对准光磁力计 (OPM) -磁脑图 (MEG) 传感器与MRI扫描. 这种新的框架结合了磁性和光学技术,提高了脑部成像的准确性.

关键词:
在OPMMEGEG中.磁极二极体是磁极二极体中的一个.光学定位约束的限制刚性线圈结构 (RCS) 是指传感器联合注册 传感器联合注册一个轴的OPM OPM

更多相关视频

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
09:43

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

9.8K
Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
08:45

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

Published on: October 24, 2012

15.1K

相关实验视频

Last Updated: Jun 16, 2026

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.3K
Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
09:43

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

9.8K
Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
08:45

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

Published on: October 24, 2012

15.1K

科学领域:

  • 生物物理学的生物物理.
  • 神经成像是一种神经成像.
  • 医学物理 医学物理

背景情况:

  • 精确的光磁力计 (OPM) -磁脑学 (MEG) 传感器与解剖学磁共振成像 (MRI) 的共同注册对于高可靠性源定位至关重要.
  • 像光学扫描图像 (OSI) 和磁二极管定位等现有方法在准确性,稳定性或确定传感器敏感体积方面存在局限性.

研究的目的:

  • 开发和验证混合联合注册框架,集成刚性线圈结构 (RCS),磁二极管定位和OPM-MEG的光学定向约束.
  • 评估线圈设计的磁二极距近似度的准确性,并评估光学定向约束对传感器稳定性的影响.

主要方法:

  • 一个多阶段的联合注册管道,涉及MRI-OSI对齐,OSI-RCS转换和RCS传感器本地化,使用统一的数学公式.
  • 系统模拟以评估不同线圈几何形状 (圆柱状螺旋,平面单转) 的磁二极距近似精度.
  • 使用18个线圈和11个单轴OPM进行实验验证,并将表面标记器的光学扫描作为软约束.

主要成果:

  • 模拟提供了线圈设计的指导方针,通过量化线圈直径和线圈半径等参数对二极管模型准确度的影响.
  • 实验结果表明,OPM-MEG传感器的位置精度为几毫米.
  • 与仅双极优化相比,光学定向先验显著提高了稳定性,并在不稳定的通道中抑制了方向模糊性.

结论:

  • 拟议的混合框架有效地结合了磁性和光学信息,以实现强大的OPM-MEG联合注册.
  • 这种方法克服了个别方法的局限性,提高了OPM-MEG源定位的空间保真度.
  • 这些发现为先进的神经成像中线圈设计和传感器稳定提供了实际见解.