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

5.0K
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...
5.0K

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

MR-guided microwave ablation of liver tumors: outcomes in local tumor control and determinants of treatment success.

European radiology·2026
Same author

Feasibility of Magnetic Resonance Imaging-Guided Pulmonary Artery Stenting in a Commercial Wide-Bore 0.55-T Scanner.

JACC. Basic to translational science·2026
Same author

Renormalization group approach to second-order Green's function theory.

The Journal of chemical physics·2026
Same author

Magnetic Resonance Imaging Evaluation of Functional Differences Between In Vivo Human Kidneys and Discarded Human Kidneys During Ex Vivo Normothermic Machine Perfusion.

Artificial organs·2026
Same author

Interfacial Enrichment and Demetallation of a Zinc Porphyrin in the Ionic Liquid [C<sub>4</sub>C<sub>1</sub>Im][PF<sub>6</sub>].

Chemphyschem : a European journal of chemical physics and physical chemistry·2026
Same author

Clinical Evaluation of Scout Accelerated Motion Estimation and Reduction (SAMER) Motion-Corrected 2D T2-Weighted TSE 3T Brain MRI in the Neurologic Intensive Care Unit.

AJNR. American journal of neuroradiology·2026

相关实验视频

Updated: Jun 12, 2025

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain
08:23

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain

Published on: March 31, 2023

2.3K

基于CNN的快速针定位,用于MR指导干预的自动切片对齐,使用3D低采样辐射白标记成像.

Jonas Frederik Faust1,2, Axel Joachim Krafft2, Daniel Polak2

  • 1Faculty of Physics and Astronomy, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.

Medical physics
|September 18, 2024
PubMed
概括

本研究介绍了使用卷积神经网络 (CNN) 进行MR引导干预的快速3D针定位方法. 该技术可实现自动成像切片对齐,提高工作流程效率和准准确度.

关键词:
设备定位 设备定位这是干预性MRI.通过皮肤注射针进行的干预.

更多相关视频

3D Scanning Technology Bridging Microcircuits and Macroscale Brain Images in 3D Novel Embedding Overlapping Protocol
10:14

3D Scanning Technology Bridging Microcircuits and Macroscale Brain Images in 3D Novel Embedding Overlapping Protocol

Published on: May 12, 2019

7.2K
Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery
07:30

Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery

Published on: May 4, 2022

3.3K

相关实验视频

Last Updated: Jun 12, 2025

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain
08:23

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain

Published on: March 31, 2023

2.3K
3D Scanning Technology Bridging Microcircuits and Macroscale Brain Images in 3D Novel Embedding Overlapping Protocol
10:14

3D Scanning Technology Bridging Microcircuits and Macroscale Brain Images in 3D Novel Embedding Overlapping Protocol

Published on: May 12, 2019

7.2K
Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery
07:30

Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery

Published on: May 4, 2022

3.3K

科学领域:

  • 医疗成像医学成像
  • 干预性放射学 干预性放射学
  • 机器学习 机器学习

背景情况:

  • 在MRI指导干预中使用二维成像可以导致针头可见性丧失和工作流程延迟.
  • 手动切片调整在干预期间是耗时的.
  • 自动针对齐对于改善MR指导程序至关重要.

研究的目的:

  • 开发和评估使用CNN的快速3D针定位算法.
  • 在MR引导干预中实现自动成像切片对齐.
  • 为了有效地本地化,利用低采样白标记对比度获取.

主要方法:

  • 实现了带有白标记编码的辐射3D渐变回声MRI序列.
  • 采用基于CNN的算法来提取针位置和方向.
  • 培训了CNN的猪组织幽灵,并评估了ex vivo和in vivo研究中的性能.

主要成果:

  • 获得了1.9mm的中位位置精度和2.6°的角度偏差ex vivo.
  • 证明了快速定位的可行性,具有高度加速的获取 (0.4秒,32支).
  • 在体内结果显示1.4毫米准确度和3.4°偏差与0.48秒收购.

结论:

  • 开发的方法可以使被动的3D活检针局部化.
  • 对于方向垂直于B0的针来说,实时适用性是可行的.
  • 这种方法可以通过自动切片对齐显著提高MR指导干预.