Apparent diffusion tensor measurements in myelin-deficient rat spinal cords
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چکیده
منابع مشابه
High b-value q-space diffusion MRI in myelin-deficient rat spinal cords.
In this study, we explore the effect of the lack of myelin on the diffusion characteristics and diffusion anisotropy obtained from high b-value q-space diffusion-weighted MRI (q-space DWI) in excised rat spinal cords. Twenty-one-day-old myelin-deficient (md) mutant (N=6) and control rats (N=6) were used in this study. The MRI protocol included multi-slice T(1), T(2), proton density (PD) MR imag...
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Diffusion tensor imaging (DTI) using variable diffusion times (t(diff)) was performed to investigate wild-type (wt) mice, myelin-deficient shiverer (shi) mutant mice and shi mice transplanted with wt neural precursor cells that differentiate and function as oligodendrocytes. At t(diff) = 30 ms, the diffusion anisotropy "volume ratio" (VR), diffusion perpendicular to the fibers (lambda( perpendi...
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As we have seen in previous chapters (Chapter 4 by Callaghan, and Chapter 5 by Le Bihan), nuclear magnetic resonance (NMR) is the gold standard for measuring the diffusivity of water and other spin-labeled species. It is the least perturbing measurement imaginable, providing extremely accurate and precise data. We have also learned that the subsequent combination of the Stejskal and Tanner puls...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2001
ISSN: 0740-3194,1522-2594
DOI: 10.1002/1522-2594(200102)45:2<191::aid-mrm1025>3.0.co;2-9