منابع مشابه
MR diffusion tensor spectroscopy and imaging.
This paper describes a new NMR imaging modality--MR diffusion tensor imaging. It consists of estimating an effective diffusion tensor, Deff, within a voxel, and then displaying useful quantities derived from it. We show how the phenomenon of anisotropic diffusion of water (or metabolites) in anisotropic tissues, measured noninvasively by these NMR methods, is exploited to determine fiber tract ...
متن کاملDiffusion - Tensor Mr Imaging Fundamentals C
It is remarkable that the MR measurement of the diffu sivity of water in neural tissue provides unique and useful biological and clinical information about tissue composition, the physical properties of its constituents, tissue microstructure, and architectural organization. Moreover, this information can be obtained in vivo, noninvasively without contrast agents. This chapter deals with diffu...
متن کاملMR diffusion tensor imaging: recent advance and new techniques for diffusion tensor visualization.
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...
متن کاملUltrasound elastic tensor imaging: comparison with MR diffusion tensor imaging in the myocardium.
We have previously proven the feasibility of ultrasound-based shear wave imaging (SWI) to non-invasively characterize myocardial fiber orientation in both in vitro porcine and in vivo ovine hearts. The SWI-estimated results were in good correlation with histology. In this study, we proposed a new and robust fiber angle estimation method through a tensor-based approach for SWI, coined together a...
متن کاملDiffusion tensor MR imaging and fiber tractography: technical considerations.
This second article of the 2-part review builds on the theoretic background provided by the first article to cover the major technical factors that affect image quality in diffusion imaging, including the acquisition sequence, magnet field strength, gradient amplitude, and slew rate as well as multichannel radio-frequency coils and parallel imaging. The sources of many common diffusion image ar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Current Protocols in Magnetic Resonance Imaging
سال: 2004
ISSN: 2572-5637,2572-5637
DOI: 10.1002/0471142719.mib0801s12