Diffusion Tensor Imaging, MR Neurography and High Resolution MRI Techniques for Mapping the Human Co

• 作 者: AaronFiller;
• 机 构: Neurography Institute Medical Associates USA
• 出 处: BIT`s 3rd Annual World Congress of NeuroTalk-2012(2012第三届国际神
• 发表日期: 2012年期

　　The Human Connectome project is a plan launched by the United States National Institutes of Health in 2009 with the intention of providing an initial complete map of the connections of the human brain.It is envisioned as a five year project involving grants totaling at least $30 million with an objective of mapping about 1200 brains.Functional data from fMRI and magnetic techniques are to be integrated with the structural data.The connectivity portion is based on connectivity established using High Angular Resolution Diffusion Imaging (HARDI) which is composed of Q-Ball and Diffusion Spectrum Imaging methods.The idea of these methods is to avoid diffusion tensor imaging per se because the tensor algorithm fails to properly evaluate crossing fibers, while these vector based methods can resolve different directions of diffusion within a single voxel.In addition to this project, the Neurography Institute has obtained about 5,000 peripheral nerve images using MR Neurography and diffusion anisotropy based techniques to establish image appearance data on peripheral nerve connectivity.The current status, limitations and future prospects of these projects is summarized.