نتایج جستجو برای: diffusion tensor tractograghy

تعداد نتایج: 195678  

Journal: :European journal of radiology 2003
Yoshitaka Masutani Shigeki Aoki Osamu Abe Naoto Hayashi Kuni Otomo

Recently, diffusion tensor imaging is attracting the biomedical researchers for its application in depiction of fiber tracts based on diffusion anisotropy. In this paper, we briefly describe the basic theory of diffusion tensor MR imaging, the determination process of diffusion tensor, and the basic concepts of diffusion tensor visualization techniques. Several results of clinical application i...

Journal: :JACC: Basic to Translational Science 2018

Journal: :Magnetic resonance in medicine 2001
A L Alexander K M Hasan M Lazar J S Tsuruda D L Parker

The diffusion tensor is currently the accepted model of diffusion in biological tissues. The measured diffusion behavior may be more complex when two or more distinct tissues with different diffusion tensors occupy the same voxel. In this study, a partial volume model of MRI signal behavior for two diffusion-tensor compartments is presented. Simulations using this model demonstrate that the con...

Journal: :Current Protocols in Magnetic Resonance Imaging 2003

Journal: :Physics in medicine and biology 2002
Vladimir Y Panin Gengsheng L Zeng Michel Defrise Grant T Gullberg

A novel approach to reconstructing the principal directions of a diffusion tensor field directly from magnetic resonance imaging (MRI) data using a tensor tomography data acquisition approach was developed. If tensor eigenvalues are assumed to be known, the reconstruction of principal directions requires fewer measurements than the reconstruction of the full tensor field. The tensor tomography ...

Journal: :Journal of magnetic resonance 2011
Peter Basser Carlo Pierpaoli

We provide scientific background information and personal accounts relating to our publication of "Microstructural and Physiological Features of Tissues Elucidated by Quantitative-Diffusion-Tensor MRI" in the Journal of Magnetic Resonance B. This paper provided a framework for measuring and mapping intrinsic features of diffusion anisotropy obtained from diffusion tensor MRI (DTI) data.

2007
Cheng Guan Koay Lin-Ching Chang Carlo Pierpaoli Peter J Basser

This preprint is made available because the published work cited below had several infelicities due to production error, i.e., awkward layout of equations and font styles. The conversion from the Words document here to IEEE TMI format was a mess. Abstract An analytical framework of error propagation for diffusion tensor imaging (DTI) is presented. Using this framework, any uncertainty of intere...

Introduction: Many cognitive and social deficits in autism are caused by abnormal functional connections between brain networks, which are manifested by impaired integrity of white matter tracts. White matter tracts are like the "highways" of the brain, which allow fast and efficient communication in different areas of the brain. The purpose of this article is to review the results of autism st...

Journal: :Neurology India 2007
Machado Calixto Rodríguez Rafael Korein Julius

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