Comparison between T2 Relaxation Time and Storage Modulus for Agarose Gel

Erica D. Chin, Jenny Ma, Christopher L. Lee, H. Jara
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Abstract

The objective of this study is to evaluate the correlations between the quantitative MRI parameter, T2 relaxation time, and the viscoelastic storage modulus for low concentrations of agarose gel. T2 values were determined from MR image maps generated by a 3T scanner. The storage modulus was measured by dynamic mechanical analysis (DMA). It was found that the T2 values decreased, while the storage modulus increased, with higher agarose concentrations.
琼脂糖凝胶T2弛豫时间与储存模量的比较
本研究的目的是评估定量MRI参数、T2弛豫时间和低浓度琼脂糖凝胶粘弹性储存模量之间的相关性。T2值由3T扫描仪生成的MR图像图确定。采用动态力学分析(DMA)测定了材料的储存模量。结果表明,随着琼脂糖浓度的增加,T2值降低,而存储模量增加。
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