相关实验视频

Updated: Jul 12, 2025

Fiber Connections of the Supplementary Motor Area Revisited: Methodology of Fiber Dissection, DTI, and Three Dimensional Documentation

Fiber Connections of the Supplementary Motor Area Revisited: Methodology of Fiber Dissection, DTI, and Three Dimensional Documentation

Published on: May 23, 2017

在解剖学追踪数据中进行纤维束的自我监督细分和表征

Vaanathi Sundaresan¹, Julia F Lehman², Chiara Maffei³

¹Department of Computational and Data Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India.

bioRxiv : the preprint server for biology

|October 24, 2023

概括

这项研究引入了一种深度学习方法,用于将大脑连接自动细分为组织学部分,加速分析并提高神经成像研究的准确性.

科学领域:

神经科学是一个神经科学.
计算生物学计算生物学
医疗成像医学成像

背景情况:

解剖学追踪对于绘制大脑连接和验证扩散核磁共振图谱至关重要.
手动绘制光纤轨迹图是耗时的,限制了可用于验证的注释数据.
开发计算机辅助细分方法对于加速追踪器数据分析至关重要.

研究的目的:

开发一种计算机辅助的细分方法,以加快对大脑追踪器数据的分析.
创建一个强大的深度学习方法来对纤维捆在组织学部分进行细分.
提高大脑连接学研究的准确性和效率.

主要方法:

提出了一种新的深度学习方法,用于光纤束细分的自我监督损失函数.
采用半监督学习来利用未标记的数据,解决手工标签的稀缺问题.
整合了解剖学和横截面连续性约束,以提高细分精度.

主要成果:

该方法在细分来自不同病例的未见组织学部分时,实现了大约0.80的真实阳性率.
证明了在不同的白物质路径中量化纤维束密度的能力.
鉴定了来自同一注射部位的纤维束密度的变化,为白质组织提供了洞察力.

结论:

开发的深度学习方法显著加快了解剖追踪数据的分析.
该方法的准确性和跨案例概括能力为神经科学研究提供了有价值的工具.
关于纤维束密度的发现对完善扩散核磁共振扫描和理解大脑电路有意义.

关键词:

解剖学上的追踪.相反的损失损失.纤维捆绑检测检测纤维捆绑检测纤维密度纤维密度纤维密度自主监督的自我监督时间组合合在一起.

更多相关视频

From Voxels to Knowledge: A Practical Guide to the Segmentation of Complex Electron Microscopy 3D-Data

From Voxels to Knowledge: A Practical Guide to the Segmentation of Complex Electron Microscopy 3D-Data

Published on: August 13, 2014

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Published on: November 8, 2012

相关概念视频

Classification of Skeletal Muscle Fibers

Classification of Skeletal Muscle Fibers

Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...