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相关概念视频

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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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...
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相关实验视频

Updated: May 17, 2025

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
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Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

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深度学习辅助外部体积去除用于高速实时动态MRI.

Merve Gülle1,2, Sebastian Weingärtner3,4, Mehmet Akçakaya1,2

  • 1Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, United States.

ArXiv
|May 9, 2025
PubMed
概括
此摘要是机器生成的。

实时电影MRI使用外体积去除 (OVR) 来减少非心脏组织的文物. 这种深度学习方法可以提高图像质量,以更快地进行心脏成像,而无需采集变化.

关键词:
在Cine CMR中使用.基于DL的重建.动态核磁共振 (MRI) 是一种动态核磁共振.幽灵的文物 幽灵的文物外部体积的去除方式实时核磁共振成像不规划的网络 不规划的网络

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科学领域:

  • 医疗成像医学成像
  • 心血管核磁共振 (MRI) 是一种心血管核磁共振.
  • 图像重建 图像的重建

背景情况:

  • 实时 (RT) 动态MRI对于评估心脏功能和运动至关重要.
  • 传统的心脏MRI需要屏住呼吸和心电图,这对一些患者来说具有挑战性.
  • 在RT电影MRI中,高加速度速度是通过从周围组织中取代人工物而受到限制的.

研究的目的:

  • 开发一种新的外部体积去除 (OVR) 方法,用于RT电影MRI中的工件减少.
  • 为了在心脏MRI中实现更高的加速度,同时保持诊断图像质量.
  • 提供后处理解决方案,不需要对MRI采集进行修改.

主要方法:

  • 开发了一种后处理外部体积去除 (OVR) 技术.
  • 训练了一种深度学习 (DL) 模型来估计和从k空间数据中删除外部体积信号.
  • 使用物理驱动的DL (PD-DL) 重建与OVR特定的损失函数.

主要成果:

  • 拟议的OVR方法有效地减少了来自非心脏区域的异名化文物.
  • 高加速RT电影MRI实现了与临床基线相当的图像质量.
  • 该方法在质量和数量上都超过了传统的重建技术.

结论:

  • 新的OVR方法是一种实用和有效的解决方案,用于RT电影MRI中的工件减少.
  • 这种方法促进了更高的加速率,提高了效率和患者舒适度.
  • 该技术保持了诊断图像质量,增强了自由呼吸的心脏MRI的实用性.