通过生物和数值模型对扩散磁共振成像中完整傅里叶直接磁共振方法的验证。
The validation of complete Fourier direct MR method for diffusion MRI via biological and numerical phantoms.
作者信息
Özcan Alpay, Quirk James D, Wang Yong, Wang Qing, Sun Peng, Spees William M, Song Sheng-Kwei
机构信息
Mallinckrodt Institute of Radiology, Washington University in Saint Louis, School of Medicine, St Louis, MO 63110, USA.
出版信息
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:3756-9. doi: 10.1109/IEMBS.2011.6090640.
Abstract
The equations of the Complete Fourier Direct (CFD) MR model are explicitly derived for diffusion weighted NMR experiments. The CFD-MR theory is validated by comparing a biological phantom constructed from nerve bundles and agar gel with its numerical implementation. The displacement integral distribution function estimated from the experimental data is in high agreement with the numerical phantom. CFD-MR's ability to estimate accurately and fully spin diffusion properties demonstrated here, provides the experimental validation of the theoretical CFD-MR model.
摘要
针对扩散加权核磁共振实验，明确推导了完全傅里叶直接（CFD）磁共振模型的方程。通过将由神经束和琼脂凝胶构建的生物模型与其数值实现进行比较，验证了CFD - MR理论。从实验数据估计的位移积分分布函数与数值模型高度吻合。此处展示的CFD - MR准确且全面估计自旋扩散特性的能力，为理论CFD - MR模型提供了实验验证。
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