基于磁共振成像的骨生物标志物
Saeed Jerban1, Hyungseok Jang1, Eric Y Chang1,2
1Department of Radiology, University of California, San Diego, La Jolla, California.
Seminars in musculoskeletal radiology
|February 8, 2024
概括
超短回声时间MRI序列能够直接成像骨,克服传统方法的局限性. 这些先进的磁共振成像 (MRI) 技术为骨提供了新的生物标志物.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 材料科学 材料科学 材料科学
- 整形外科 整形外科 整形外科
背景情况:
- 传统的磁共振成像 (MRI) 由于其短的T2*放松时间,难以成像骨.
- 骨包括有机,水,脂肪和矿物成分,每一个都为基于MRI的表征提供了潜力.
- 现有的MRI技术在直接评估骨的微观结构和组成特性方面是有限的.
研究的目的:
- 审查开发和应用超短回声时间 (USET) MRI 序列用于骨成像.
- 描述基于USET序列的基于MRI的新型骨生物标志物.
- 突出这些生物标志物对骨结构和组成变化的敏感性.
主要方法:
- 开发和应用超短回声时间 (USET) MRI 序列.
- 骨区的特征,包括水 (总量,毛孔,结合),脂肪和有机基质.
- 对骨矿物密度的MRI替代品的识别.
主要成果:
- 使用MRI可直接可视化和量化骨组织.
- 建立了基于MRI的生物标志物,用于在骨内的水,脂肪和有机基质部分.
- 开发了使用MRI进行矿物密度评估的替代品.
结论:
- USET MRI提供了一个强大的,非侵入性的工具,用于全面的骨评估.
- 基于MRI的骨生物标志物为骨结构和组成提供了新的见解.
- 这些进展为诊断和监测骨疾病带来了巨大的潜力.
更多相关视频
07:33In Vivo Evaluation of Fracture Callus Development During Bone Healing in Mice Using an MRI-compatible Osteosynthesis Device for the Mouse Femur
Published on: November 14, 2017
9.6K
17:16Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring
Published on: December 9, 2010
10.3K
相关概念视频
01:24Magnetic Resonance Imaging
5.2K
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...
5.2K
01:25Applications Of NMR In Biology
3.7K
Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
3.7K
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
158
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
158
01:33Proteomics
7.3K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.3K