Title :
Fiber tracking using recursive stack data structure
Author :
Duru, Dilek Göksel ; Özkan, Mehmed
Author_Institution :
Biyomed. Muhendisligi Enstitusu, Bogazici Univ., Istanbul, Turkey
Abstract :
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 256times256times60times30. 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.
Keywords :
biodiffusion; biomedical MRI; brain; data structures; eigenvalues and eigenfunctions; image sampling; medical image processing; neurophysiology; recursive estimation; tensors; tracking; DTI literature; apparent diffusion coefficient; diffusion image creation; diffusion tensor magnetic resonance imaging; eigenvector information; image sample analysis; local water diffusion; recursive stack data structure fiber tracking; stack linked list application; tractography algorithm; Brain; Covariance matrix; Data structures; Diffusion tensor imaging; Humans; Image analysis; Magnetic analysis; Principal component analysis; Tensile stress; Uncertainty;
Conference_Titel :
Biomedical Engineering Meeting, 2009. BIYOMUT 2009. 14th National
Conference_Location :
Balcova, Izmir
Print_ISBN :
978-1-4244-3605-7
Electronic_ISBN :
978-1-4244-3606-4
DOI :
10.1109/BIYOMUT.2009.5130350