相关实验视频
Updated: Jan 21, 2026

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
Published on: December 18, 2016
量化MRI生物标志物用于早期肌肉参与晚期发作的佩病
Michele G Croce1, Leonardo Barzaghi2,3, Matteo Paoletti3
1Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy.
定量肌肉MRI (qMRI) 能够有效地检测晚发佩病 (LOPD) 的早期肌肉变化. 大腿肌肉中的脂肪分数 (FF),特别是大 adductor (AM),与疾病严重程度有很强的相关性,有助于治疗时间.
科学领域:
- 神经学 神经学
- 医疗成像医学成像
- 生物标志物 生物标志物
背景情况:
- 早期检测肌肉参与对于及时治疗晚发佩病 (LOPD) 至关重要.
- 定量肌肉MRI (qMRI) 显示出评估LOPD亚临床肌肉变化的前景.
- 诊断和管理需要敏感的工具来监测疾病的进展和治疗疗效.
研究的目的:
- 评估定量肌肉MRI (qMRI) 参数的实用性,包括脂肪分数 (FF) 和水T2 (wT2),用于检测和量化LOPD患者的肌肉参与.
- 评估qMRI发现与早期和症状LOPD的临床,功能和呼吸结果之间的相关性.
- 识别特定的qMRI指标,如 adductor magnus (AM) /rectus femoris (RF) FF比率,可以区分疾病阶段和健康对照.
主要方法:
- 一项多中心前性研究,涉及33名LOPD患者 (早期和有症状) 和34名对照.
- 在3T获得大腿MRI,使用T1加权和STIR序列进行FF和wT2计算.
- 在11个大腿区域分析FF和wT2,评估AM/RFFF比率,并计算wT2参与分数 (WIS).
主要成果:
- 部FF与临床疾病严重程度等级有很强的相关性 (ρ高达0.86).
- adductor magnus (AM) FF (AUC:0.96) 和 AM/RF FF比率 (AUC:0.94) 有效地区分了LOPD阶段.
- 与早期患者和对照人群相比,有症状的LOPD患者表现出较高的wT2参与得分 (WIS).
结论:
- 部FF是一个强大的LOPD疾病严重程度的生物标志物.
- AM FF和独立于年龄的AM/RF FF比率对LOPD早期结构性肌肉变化敏感.
- qMRI参数,包括FF和WIS,在纵向验证后显示出在LOPD中指导最佳治疗开始时间的潜力.
更多相关视频
10:16In Vitro Enzyme Measurement to Test Pharmacological Chaperone Responsiveness in Fabry and Pompe Disease
Published on: December 20, 2017
06:31Quantitative [18F]-Naf-PET-MRI Analysis for the Evaluation of Dynamic Bone Turnover in a Patient with Facetogenic Low Back Pain
Published on: August 8, 2019
相关概念视频
Antigens Involved in Adaptive Immunity
Complete Antigens
Complete antigens possess both immunogenicity and...
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
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...
Classification of Skeletal Muscle Fibers
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...