光纤跟踪采用递归堆栈数据结构

D. G. Duru, M. Ozkan
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引用次数: 0

摘要

在扩散张量磁共振成像(DT-MRI)中,每个体素被分配一个描述局部水扩散的张量。本文基于栈链表的应用,分析了扩散张量的特征向量。本研究的目的是开发一种可靠、快速的神经束成像算法。所分析的图像样本由60张扩散加权的人脑图像和一张空图像即T2图像组成,形成一组大小为256×256×60×30的强度图像。在每个像素中计算D的特征向量,表观扩散系数ADC相对于D表示。所提出的方法的思想是从单个选定的节点开始,考虑到整个大脑特征向量的所有信息,从而完成光纤通路。通过提出的研究,针对DTI文献中的主要缺陷即不确定区域,提出了一种消除方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fiber tracking using recursive stack data structure
In diffusion tensor magnetic resonance imaging (DT-MRI), each voxel is assigned a tensor that describes local water diffusion. In this study, the eigenvectors of the diffusion tensor are analyzed based on stack linked list application. The aim of the study is to develop a reliable and rapid tractography algorithm. The analyzed image sample consists of 60 diffusion weighted human brain images and a null image namely the T2 image creating a set of intensity images of size 256×256×60×30. The eigenvectors of D is calculated in every pixel, apparent diffusion coefficient ADC is represented with respect to D. The idea of the proposed method is to accomplish the fiber pathway by starting from a single, selected node taking every node in other words all the information of the eigenvector of the whole brain into account. Via the proposed study, an elimination method for the main drawback in DTI literature namely the uncertainty regions are aimed.
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