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

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

6.7K
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...
6.7K

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

Prenatal sexual dimorphism in human pelvic tilt at the onset of fetal ossification.

Developmental dynamics : an official publication of the American Association of Anatomists·2026
Same author

Morphogenesis of the Extraocular Muscles During the Human Embryonic and Early Fetal Periods.

Congenital anomalies·2026
Same author

Determinants of midgut loop formation: Influence of midgut length, diameter, and location.

Developmental dynamics : an official publication of the American Association of Anatomists·2026
Same author

Detection of Muscle Fiber Orientation During Human Tongue Development: Analysis Using Diffusion Tensor Imaging.

NMR in biomedicine·2026
Same author

Two-decade trends in prenatal genetic testing in Japan.

Journal of human genetics·2026
Same author

Morphogenetic development of trochlear groove and thigh muscles from embryo to fetus in humans.

PloS one·2026

相关实验视频

Updated: Sep 10, 2025

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
06:56

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

2.5K

用零射击自我监督学习进行压缩感应重建,用于人类胚胎的高分辨率MRI

Kazuma Iwazaki1, Naoto Fujita1, Shigehito Yamada2

  • 1Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.

Tomography (Ann Arbor, Mich.)
|August 27, 2025
PubMed
概括

零射击自我监督学习 (ZS-SSL) 显著减少了人类胚胎的高分辨率MRI扫描时间. 这种深度学习方法将空间分辨率保持在加速度系数4上,从而为发育图谱提供高效的数据采集.

关键词:
压缩传感器深度学习的重建高分辨率MR显微镜人类胚胎空间分辨率

更多相关视频

Author Spotlight: Advancing 3D Cytoarchitecture Analysis - Rapid Volumetric Reconstruction of the Human Brain
06:52

Author Spotlight: Advancing 3D Cytoarchitecture Analysis - Rapid Volumetric Reconstruction of the Human Brain

Published on: January 26, 2024

2.3K
Whole-Brain Single-Cell Imaging and Analysis of Intact Neonatal Mouse Brains Using MRI, Tissue Clearing, and Light-Sheet Microscopy
08:49

Whole-Brain Single-Cell Imaging and Analysis of Intact Neonatal Mouse Brains Using MRI, Tissue Clearing, and Light-Sheet Microscopy

Published on: August 1, 2022

3.7K

相关实验视频

Last Updated: Sep 10, 2025

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
06:56

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

2.5K
Author Spotlight: Advancing 3D Cytoarchitecture Analysis - Rapid Volumetric Reconstruction of the Human Brain
06:52

Author Spotlight: Advancing 3D Cytoarchitecture Analysis - Rapid Volumetric Reconstruction of the Human Brain

Published on: January 26, 2024

2.3K
Whole-Brain Single-Cell Imaging and Analysis of Intact Neonatal Mouse Brains Using MRI, Tissue Clearing, and Light-Sheet Microscopy
08:49

Whole-Brain Single-Cell Imaging and Analysis of Intact Neonatal Mouse Brains Using MRI, Tissue Clearing, and Light-Sheet Microscopy

Published on: August 1, 2022

3.7K

科学领域:

  • 医学成像
  • 发育生物学
  • 人工智能

背景情况:

  • 高分辨率磁共振成像 (MRI) 对于研究人类胚胎发育至关重要.
  • 由于样本可行性和数据采集限制,长时间的扫描可能会限制成像的可行性.
  • 深度学习重建方法为加速MRI采集提供了潜力.

研究的目的:

  • 评估零射击自主监督学习 (ZS-SSL) 在减少高分辨率人类胚胎MRI扫描时间方面的有效性.
  • 评估ZS-SSL是否可以在与传统方法相比的加速扫描速度下保持空间分辨率.
  • 在本应用中确定ZS-SSL的最佳加速度因子.

主要方法:

  • 使用数值幻影进行模拟,以评估各种加速度系数 (AF) 和信号噪声比 (SNR) 的空间分辨率.
  • 使用Sparrow标准对分辨率进行量化,并将ZS-SSL与压缩传感 (CS) 进行比较.
  • 人类胚胎的实验高分辨率MRI (30微米) 3 (卡内基阶段21),使用AF=4和8的回顾性和前性低样本.

主要成果:

  • 与CS相比,ZS-SSL显示出更高的空间分辨率,特别是在较低的SNR.
  • 在AF=4时,ZS-SSL实现了与完全采样数据相比的图像质量.
  • 在AF=4的实验成像允许胚胎结构的清晰可视化;AF=8导致清晰度降低.

结论:

  • 在高分辨率的人类胚胎MRI中,ZS-SSL可显著减少扫描时间,同时保持AF=4 (SNR> 15) 的空间分辨率.
  • 这种加速图像质量的权衡对于时间敏感的研究和有限的样本可用性是有利的.
  • 这种方法有助于高效的超高分辨率数据采集,支持创建详细的发育地图.