相关实验视频

Updated: Jun 4, 2025

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

基于深度学习的后对比高加速度心脏电影MRI对心室功能评估的可靠性

Makoto Orii¹, Momoko Sugawara¹, Tsuyoshi Sugawara²

¹Department of Radiology, Iwate Medical University, Yahaba, Japan.

Magnetic resonance imaging

|December 21, 2024

概括

基于深度学习的心脏影像成像 (DL cine) 提供了相应的图像质量和腹腔功能评估,无论是在对比剂施用前和后. 这种2D DL影像技术可以减少整体心脏MRI扫描时间.

科学领域:

心血管成像 - 心血管成像
人工智能在医学中的应用
医学物理医学物理

背景情况:

心脏磁共振 (CMR) 成像对于评估双心室体积和功能至关重要.
减少CMR扫描时间是可取的,以提高患者的舒适性和吞吐量.
深度学习 (DL) 技术为加速图像采集提供了潜力.

研究的目的:

评估基于二维深度学习的高加速心脏影像 (DL cine) 成像的诊断性能.
为了比较前后对比度DL cine采集的图像质量和双心功能参数.
为了确定DL cine是否可以在对比后进行,以缩短整体检查时间.

主要方法:

30名患者接受了1.5T心脏MRI,在短轴视图中进行了对比前和后2D DL影像成像.
图像质量是根据对比度,边界划分和运动工件来评估的.
量化了两心室参数,包括末端透气体积 (EDV),末端静脉体积 (ESV),中风体积 (SV),喷射率 (EF) 和左心室质量 (LVM).

主要成果:

2D DL cine获取时间的中位数为38.4±9.1秒.
在对比扫描前后的图像质量得分中没有发现显著差异 (p > 0.05).
双晶体体体积和功能参数 (EDV,ESV,SV,EF,LVM) 在对比前和后的DL cine之间没有显著差异 (p > 0.05).

结论:

2D DL电影成像在对比剂施用前和施用后显示了同等的性能.
这些发现支持使用对比后DL cine,以潜在地减少心脏MRI检查总时间.
DL cine是一种可行的工具,用于临床评估心脏功能和图像质量.

关键词:

心脏磁共振成像心脏磁共振成像相反的注入注入.基于深度学习的高度加速的心脏电影.室腔功能室腔功能

更多相关视频

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

Published on: February 16, 2016

Assessment of Cardiac Function and Myocardial Morphology Using Small Animal Look-locker Inversion Recovery SALLI MRI in Rats

Assessment of Cardiac Function and Myocardial Morphology Using Small Animal Look-locker Inversion Recovery SALLI MRI in Rats

Published on: July 19, 2013

相关概念视频

Imaging Studies for Cardiovascular System IV: CMRI

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...

Imaging Studies for Cardiovascular System V: CT

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...

Magnetic Resonance Imaging

Magnetic Resonance Imaging

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...