使用4D流MRI评估动脉样硬化胸腔大动脉化和定量流量参数之间的关系
Hirofumi Koike1,2, Eijun Sueyoshi3, Takamasa Nishimura3
1Department of Radiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan. kei16231623@gmail.com.
The international journal of cardiovascular imaging
|August 5, 2025
概括
四维 (4D) 核磁共振测量血流量,以评估胸前大动脉化 (TAC). 某些血流参数与TAC严重程度的相关性较弱,这表明进一步研究的临床应用潜力.
科学领域:
- 心血管成像 - 心血管成像
- 生物物理学的生物物理.
- 医学物理 医学物理
背景情况:
- 动脉样硬化与异常的血液流动模式有关.
- 胸前动脉化 (TAC) 是动脉样硬化的表现.
- 量化血液流动动力学对于理解心血管疾病进展至关重要.
研究的目的:
- 研究从4D流动MRI获得的定量血流参数与胸前大动脉化 (TAC) 的严重程度之间的关系.
- 评估4D流MRI衍生指标的潜力,以评估TAC.
主要方法:
- 根据Agatston分数,对272名不同程度的TAC (无,轻度,严重) 的患者进行了回顾性分析.
- 血流参数的计算:胸前大动脉平均体积 (mTAV),能量损失 (EL),旋转率和螺旋率 (平均,最大,最小).
- 在Agatston得分和正常化血流参数 (除以mTAV) 之间的相关性分析.
主要成果:
- 在TAC严重程度组之间观察到mTAV,EL,旋转率和螺旋率的显著差异.
- 在一些旋转和螺旋性参数与Agatston分数之间发现了弱正相关性.
- 对于其他和螺旋度指标,相对于TAC严重程度,发现了弱负相关性.
结论:
- 4D流动MRI提供了定量血流参数,显示了与TAC的关联.
- 这些参数对评估TAC充满希望,但由于中等的关联和潜在的混因素,需要仔细解释.
- 需要进行进一步的研究,以确定这些定量测量的临床效用,用于TAC诊断,分级和预测.
更多相关视频
08:43Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
Published on: May 31, 2016
19.7K
09:36A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis
Published on: August 12, 2025
77
相关概念视频
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
119
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
119
Magnetic Resonance Imaging
7.0K
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...
7.0K
