Advancements of high-resolution diffusion tensor imaging of brain / 中国介入影像与治疗学

ABSTRACT

Diffusion tensor imaging (DTI) is an imaging method that can be used to describe changes of tissue structure through the diffusion of water molecules in living tissue. Fiber tracking based on DTI can display the anatomic structure of cerebral nerve fibers noninvasively and clearly, which is of great value for diagnosis and treatment of brain diseases. However, due to the Gaussian hypothesis of the diffusion tensor model, it is difficult to indicate fiber directions in fiber crossing region. A high-resolution DTI method was proposed to estimate the direction distribution of multiple fibers. The research advancements of fiber tracking based on high-resolution DTI were reviewed in this article.