Basic Principle and Image Analysis in the Diffusion Tensor Image

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  • SATO Eisuke
    Faculty of Health Sciences, Kyorin University Graduate School of Comprehensive Human Sciences, University of Tsukuba
  • ISOBE Tomonori
    Faculty of Medicine, University of Tsukuba
  • YAMAMOTO Tetsuya
    Department of Neurosurgery, University of Tsukuba Hospital
  • MATSUMURA Akira
    Department of Neurosurgery, University of Tsukuba Hospital

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  • 拡散テンソル画像の基本原理と画像解析
  • カクサン テンソル ガゾウ ノ キホン ゲンリ ト ガゾウ カイセキ

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Abstract

<p>The magnetic resonance imaging (MRI) is established as the imaging technique that is essential to the imaging of the central nervous system disease. Above all, the diffusion weighted image (DWI) is known as the tool which can diagnose acute ischemic stroke with high accuracy in a short time. DTI, an applied form of DWI, was devised as a technique to image the structure of the brain white matter. In clinical sites, this technique is used for pathologic elucidation such as the intracerebral tissue injury or mental disorder. Additionally, diffusion tensor tractography (DTT), which is a technique to build three-dimensional structure of the neural fiber tracts, is used for grasping the relations between a brain tumor and the fibers tract. Therefore, these techniques may be useful imaging tools in the central nerve region.</p>

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