A104 拡散トラクトグラフィ法による脳内神経線維の可視化

Abstract

In this paper, we present a new visualization method, called diffusion based tractography (DBT), for diffusion tensor magnetic resonance imaging (DT-MRI). The DBT method generates 3D textures similar to the line integral convolution (LIC) by smearing 3D random dot textures. In contrast to LIC, which only traces a single direction, DBT takes into account both linear and planar diffusion components and suppresses excessive blur due to spherical diffusion, by an analysis of the diffusion tensor components. We will demonstrate that DBT is effective for visualizing dense white matter connectivity to be found in human brain.