MR diffusion tensor spectroscopy and imaging
نویسندگان
چکیده
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 کاملMR imaging, MR spectroscopy, and diffusion tensor imaging of sequential studies in neonates with encephalopathy.
BACKGROUND Although the imaging, spectroscopic, and diffusion characteristics of brains of infants with neonatal encephalopathy have been described, the time course during which these changes evolve is not clear. The results of sequential MR imaging studies--including anatomic MR imaging, proton MR spectroscopy, and diffusion tensor imaging (DTI)--of 10 patients enrolled prospectively in a stud...
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 کاملThe normal neonatal brain: MR imaging, diffusion tensor imaging, and 3D MR spectroscopy in healthy term neonates.
BACKGROUND AND PURPOSE There is a lack of normative diffusion tensor imaging (DTI) and 3D MR spectroscopy (MRS) data in the early neonatal period. We report quantitative values from a cohort of healthy term neonates to serve as baseline data for studies assessing brain development and injury. MATERIALS AND METHODS Sixteen healthy term neonates (median age, 7 days) were studied with spin-echo ...
متن کاملNeuro-Behcet's disease: diffusion MR imaging and proton MR spectroscopy.
We herein report the case of a 53-year-old woman with Behcet's disease and an acute T2-hyperintense lesion in left side of the pons. Echo-planar "trace" diffusion MR imaging revealed high signal intensity changes at the lesion site on b = 1000 s/mm(2) images, initially suggesting restricted diffusion. On corresponding apparent diffusion coefficient maps, however, the lesion had high signal inte...
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: Biophysical Journal
سال: 1994
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(94)80775-1