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磁共振T_2弛豫时间图成像技术在关节软骨中的应用 被引量:4

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摘要 磁共振成像可无创显示关节软骨,对关节软骨细胞外基质的生化及力学方面的早期变化具有很高的敏感度。关节软骨的磁共振T_2弛豫时间值与软骨的含水量、胶原结构、生物力学因素有关,T_2弛豫时间图成像技术是目前应用最为广泛的磁共振成像技术之一,通过测量软骨磁共振脉冲序列不同回波时间像的信号强度变化得到T_2值。作为评估关节软骨早期病变的敏感影像参数之一,T_2伪彩图及其T_2值可用于评价软骨形态学和功能学,有助于了解骨关节炎、软骨老化和运动后的生理及病理变化,并可用于评估软骨病变早期诊断及修复评估。该文就T_2弛豫时间图成像技术的基本原理、影响因素和临床应用现状作一综述。
出处 《国际骨科学杂志》 2010年第4期214-216,共3页 International Journal of Orthopaedics
基金 上海市基础研究重点项目(09JC1409800)
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参考文献26

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共引文献60

同被引文献28

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