D-eigenvalues of diffusion kurtosis tensors

D-eigenvalues of diffusion kurtosis tensors
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扩散峰度张量的 D-特征值

DOI:
10.1016/j.cam.2007.10.012
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发表时间:
2008-11-01
影响因子:
2.4
通讯作者:
Wu, Ed X.
Wu, Ed X.
中科院分区:
数学2区
文献类型:
--
作者:
Qi, Liqun;Wang, Yiju;Wu, Ed X.

文献摘要

被引文献

相似文献

扩散峰度成像(DKI)是一种新的医学工程模型,它包含扩散峰度(DK)张量。DK张量是四阶三维完全对称张量。在本文中,我们引入了DK张量的D-本征值。DK张量的最大、最小和平均D-特征值分别对应于水分子在空间中的最大、最小和平均表观峰度系数(AKC)。我们给出了它们的计算方法,并讨论了AKC的相关各向异性值。(C)2007 Elsevier B.V.保留所有权利。
Diffusion kurtosis imaging (DKI) is a new model in medical engineering, where a diffusion kurtosis (DK) tensor is involved. A DK tensor is a fourth-order three-dimensional fully symmetric tensor. In this paper, we introduce D-eigenvalues for a DK tensor. The largest, the smallest and the average D-eigenvalues of a DK tensor correspond with the largest, the smallest and the average apparent kurtosis coefficients (AKC) of a water molecule in the space, respectively. We present their computational methods and discuss related anisotropy value of AKC. (C) 2007 Elsevier B.V. All rights reserved.