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早期椎间盘退化的定量评估,用MR扩散性形成像:与Pfirrmann等级的放射相关性

Neil Abraham Barnes¹, Winniecia Dkhar¹, Rajagopal Kadavigere²

¹Department of Medical Imaging Technology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, India.

Magnetic resonance imaging

|December 13, 2025

概括

扩散曲解成像 (DKI) 通过分析水扩散来检测早期脊椎盘退化. 这种先进的MRI技术显示出作为生物标记物的承诺,可以在明显的症状出现之前识别微妙的微观结构变化.

科学领域:

生物医学成像技术生物医学成像技术
放射学放射学是一门学科.
脊柱成像技术脊柱成像技术

背景情况:

退行性脊髓疾病会导致广泛的腰部疼痛和运动能力下降.
由于生活方式因素,早期磁盘退化在年轻人中很普遍.
传统的MRI很难检测早期的微结构性磁盘变化.

研究的目的:

评估用于检测早期椎间盘退化症的定量扩散皮质变形成像 (DKI) 参数.
为了将DKI的发现与胸脊椎中已建立的Pfirrmann分级系统进行相关联.

主要方法:

一项针对76名参与者 (54人患有退行性脊柱疾病,22人为对照组) 的前性研究,使用3T核磁共振.
获取T1,T2和DKI序列,生成参数图 (MK,AK,RK,FA,MD,AD,RD,KA) 的数据.
对核脉和纤维环 (I-IV级磁盘) 的兴趣区域分析.

主要成果:

在退行性磁盘中,DKI参数的平均皮质变化 (MK),轴性皮质变化 (AK) 和辐射性皮质变化 (RK) 显著更高.
发散性指数 (MD,AD,RD) 在退行性磁盘中明显较低.
在DKI参数和退化之间最强的相关性被观察到在中至下腰部水平,核脉和前环.

结论:

DKI提供了磁盘微观结构的定量表征.
DKI显示了诊断潜力,可以区分退行性与非退行性磁盘.
DKI是一种有前途的成像生物标志物,用于评估早期脊髓退行.

关键词:

扩散曲解成像成像技术椎间盘退化椎间盘退化腰部下部疼痛腰部下部疼痛腰椎脊柱的腰椎脊柱是指腰椎脊柱的部分.皮尔曼的分级是第一个.

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