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

Cerebrospinal Fluid01:21

Cerebrospinal Fluid

3.0K
Cerebrospinal fluid (CSF) is a colorless liquid that flows around the brain and the spinal cord, playing a vital role in the protection, support, and overall function of the central nervous system (CNS). CSF production, circulation, and absorption are tightly regulated processes essential for the brain and spinal cord to function properly.
CSF Production
CSF is produced mainly in the choroid plexus, a network of capillaries and ependymal cells located within the ventricular system of the brain....
3.0K
Capillary Exchange01:28

Capillary Exchange

5.7K
The cardiovascular system's chief role is to disseminate gases, nutrients, waste, and other substances to the body's cells. Small molecules like gases, lipids, and lipid-soluble substances directly diffuse through capillary wall endothelial cell membranes. Glucose, amino acids, and ions, including sodium, potassium, calcium, and chloride, use transporters for facilitated diffusion via membrane-specific channels. Glucose, ions, and bigger molecules may also pass through intercellular...
5.7K
Body Water Content and Fluid Compartments01:19

Body Water Content and Fluid Compartments

1.8K
Life's biochemical processes occur within aqueous solutions. Solutes are substances that are dissolved within these solutions. The human body contains a variety of solutes, which can differ across various body parts. These can encompass proteins—such as those responsible for clotting and carbohydrate transport—as well as electrolytes. In medicine, an electrolyte is often described as a mineral ion derived from a salt possessing an electric charge. Examples include sodium ions...
1.8K
Anatomy of the Brain: Ventricles01:18

Anatomy of the Brain: Ventricles

5.1K
There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
5.1K
Fluid Movement Between Compartments01:18

Fluid Movement Between Compartments

1.3K
The force applied by fluids against a surface, known as hydrostatic pressure, initiates the transfer of fluid among different compartments. Within our blood vessels, the blood's hydrostatic pressure is a result of the heart's pumping action. At the arteriolar end of capillaries, hydrostatic pressure (capillary blood pressure) exceeds the opposing colloid osmotic pressure created primarily by plasma proteins like albumin. This discrepancy in pressure propels plasma and nutrients from the...
1.3K
Density00:56

Density

15.6K
Density is an important characteristic of substances, crucial in determining whether an object sinks or floats in a fluid. Its SI unit is kg/m3, and its cgs unit is g/cm3. The density of an object helps in identifying its composition, and also reveals information about the phase of the matter and its substructure. The densities of liquids and solids are roughly comparable, consistent with the fact that their atoms are in close contact. However, gases have much lower densities than liquids and...
15.6K

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

Trajectories of brain structure and function in young adult carriers of genetic frontotemporal dementia variants.

medRxiv : the preprint server for health sciences·2026
Same author

Choroid plexus calcification detection using quantitative susceptibility mapping MRI.

medRxiv : the preprint server for health sciences·2026
Same author

Cerebral Blood Transit in Sickle Cell Anemia.

Journal of magnetic resonance imaging : JMRI·2026
Same author

Quantitative imaging of iron dysregulation in multiple system atrophy.

NeuroImage·2026
Same author

Correction to: Microvascular Function and Ambulatory Capacity in Peripheral Artery Disease.

Circulation. Cardiovascular interventions·2026
Same author

Fraud Prevalence and Prospective Prediction of Fraud Victimization in the Health and Retirement Study.

medRxiv : the preprint server for health sciences·2026
Same journal

Feasibility and SNR Performance of Hyperpolarized <sup>129</sup>Xe Gas Exchange Imaging Using a Balanced SSFP Sequence.

Magnetic resonance in medicine·2026
Same journal

Multi-Contrast Human Brain CEST MRI at 11.7 T: First In Vivo Demonstration.

Magnetic resonance in medicine·2026
Same journal

Suppression of Oscillation and Ghosting in RF-Spoiled Gradient-Echo-Based Dynamic Imaging.

Magnetic resonance in medicine·2026
Same journal

A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp-Logan.

Magnetic resonance in medicine·2026
Same journal

7T 3D-EPI PCASL With High SNR Efficiency and Robustness to Through-Plane B<sub>0</sub> Field Gradients.

Magnetic resonance in medicine·2026
Same journal

A Comparison of Tissue Property Values Estimated Using Conventional Cardiac MRF and MT-Cardiac MRF.

Magnetic resonance in medicine·2026
查看所有相关文章

相关实验视频

Updated: Sep 11, 2025

Microdissection and Whole Mount Scanning Electron Microscopy Visualization of Mouse Choroid Plexus
06:45

Microdissection and Whole Mount Scanning Electron Microscopy Visualization of Mouse Choroid Plexus

Published on: December 16, 2022

4.6K

冠状动脉的水密度是水的密度.

Abigail R Dubois1, Maeve Curtin1, Kilian Hett1

  • 1Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee, USA.

Magnetic resonance in medicine
|August 11, 2025
PubMed
概括
此摘要是机器生成的。

在健康的成年人中,胸膜 (ChP) 的水密度大约为0.895,每天没有显著的变化. 这一发现为使用ChP MRI的神经成像协议提供了关键的参考.

关键词:
大脑脊髓液中的脑脊液.冠状腺复合体 冠状腺复合体质子密度 质子密度水的密度 水的密度.

更多相关视频

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies
04:25

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies

Published on: December 15, 2023

2.8K
Author Spotlight: Insights and Innovations in Gene Expression Manipulation Techniques for Choroid Plexus Research
04:43

Author Spotlight: Insights and Innovations in Gene Expression Manipulation Techniques for Choroid Plexus Research

Published on: June 16, 2023

1.1K

相关实验视频

Last Updated: Sep 11, 2025

Microdissection and Whole Mount Scanning Electron Microscopy Visualization of Mouse Choroid Plexus
06:45

Microdissection and Whole Mount Scanning Electron Microscopy Visualization of Mouse Choroid Plexus

Published on: December 16, 2022

4.6K
Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies
04:25

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies

Published on: December 15, 2023

2.8K
Author Spotlight: Insights and Innovations in Gene Expression Manipulation Techniques for Choroid Plexus Research
04:43

Author Spotlight: Insights and Innovations in Gene Expression Manipulation Techniques for Choroid Plexus Research

Published on: June 16, 2023

1.1K

科学领域:

  • 神经成像是一种神经成像.
  • 生物物理学的生物物理.
  • 人体生理学 人体生理学

背景情况:

  • 冠状动脉 (ChP) 是大脑心室内的关键结构,负责大脑脊髓液的产生.
  • 了解ChP的定量性质,例如水密度,对于解释先进的神经成像数据至关重要.
  • 之前的研究还没有全面量化健康成年人中CHP水密度的日间变化.

研究的目的:

  • 在健康的成年人中,确定胆脉 (ChP) 水密度的规范范围.
  • 为了研究CHP水密度在一天中的昼夜变化.
  • 为基于CHPMRI的指标提供量化参考.

主要方法:

  • 15名健康参与者接受了为期5天的动图,以评估昼夜活动.
  • 高分辨率的质子密度加权MRI扫描在清醒期间的四个时间点获得.
  • 用一种涉及白物质和ChP信号强度的比率方法计算状 (ChP) 的水密度.

主要成果:

  • 总的平均ChP水密度为0.895±0.047,范围为0.806-0.983.
  • 在不同时间段 (上午,中午,下午,晚上) 测量水密度,没有显示出统计学上显著的差异.
  • 没有发现CHP水密度与白天时间或昼夜活动水平之间的相关性.

结论:

  • 在健康的成年人中,胆脉 (ChP) 水密度的规范值约为0.895.5.
  • ChP的水密度在一天中保持稳定,并且在清醒期间不受昼夜节律的显著影响.
  • 这一既定的规范值作为涉及ChP的定量神经成像研究的重要参考.