标准化心肌T1和T2放松时间:定义年龄和并发症调整的参考值,以改善基于CMR的组织特征
Mukaram Rana1, Vitali Koch2, Simon Martin2
1Department of Cardiology and Angiology, University Hospital, Goethe University Frankfurt, 60590 Frankfurt, Germany.
Journal of clinical medicine
|September 13, 2025
概括
标准化心肌T1和T2放松时间对于准确的心磁共振成像 (CMR) 诊断至关重要. 年龄和某些条件,如心房动影响这些值,需要调整的参考范围,以更好地照顾患者.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 生物物理学的生物物理.
背景情况:
- 确定心肌T1和T2放松时间的标准化参考值对于准确解释心磁共振 (CMR) 图像是至关重要的.
- 了解这些放松时间根据年龄,性别和并发症的变化,对于有效的心肌组织表征至关重要.
研究的目的:
- 在现实患者队列中建立心肌T1和T2放松时间的标准化参考值.
- 评估年龄,性别和相关疾病对这些放松时间的影响.
- 增强基于CMR的心肌图谱,以更好地区分正常和病理心肌疾病.
主要方法:
- 用1.5特斯拉CMR对491名受试者的回顾性观察研究.
- 使用修改的Look-Locker反转恢复 (MOLLI) 和梯度和旋转回声 (GRASE) 序列测量T1和T2放松时间.
- 进行统计分析以评估人口统计和临床因素的变化和影响.
主要成果:
- 全球平均T1时间为1004.7±49.8毫秒,不受年龄或性别的影响.
- 心房动和心肌吐与显著延长的T1时间有关.
- 全球平均T2时间为67.4±8.6毫秒,在NYHAIII-IV类患者中显示与年龄相关的延长和延长值.
结论:
- 标准化的T1和T2参考值对于提高CMR诊断准确性和风险分层至关重要.
- 未来的研究应该专注于多中心验证和人工智能驱动的分析.
- 建议为个性化心血管护理开发年龄和并发症调整的规范数据库.
关键词:
这是草地.莫莉 (MOLLI) 是一个叫做莫莉 (MOLLI) 的语言.T1映射 T1映射 T1映射 T1映射T2映射 T2映射 T2映射 T2映射 T2映射 T2映射年龄的年龄年龄的年龄.心脏磁力共振成像 (MRI)这种疾病是共患的.性别 性别 性别 性别 性别心肌放松时间 心肌放松时间心肌组织的特征表征定量成像技术 定量成像技术在性爱中,性爱是性爱.更多相关视频
08:41Assessment of Cardiac Function and Myocardial Morphology Using Small Animal Look-locker Inversion Recovery SALLI MRI in Rats
Published on: July 19, 2013
13.1K
11:13Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
Published on: May 24, 2021
7.1K
相关概念视频
Imaging Studies for Cardiovascular System IV: CMRI
313
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,...
313
Magnetic Resonance Imaging
9.1K
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...
9.1K
Imaging Studies for Cardiovascular System V: CT
286
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...
286
