Assessment of axonal fiber tract architecture in excised rat spinal cord by localized NMRq-space imaging: Simulations and experimental studies
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چکیده
منابع مشابه
Hypertension and neuronal degeneration in excised rat spinal cord studied by high-b value q-space diffusion magnetic resonance imaging.
Hypertension is one of the major risk factors of stroke and vascular dementia (VaD). We used stroke prone spontaneous hypertensive rats (SPSHRs) as a model for neuronal degeneration frequently occurring in humans with vascular disease. Recently, high b value q-space diffusion-weighted imaging (DWI) was shown to be very sensitive to the pathophysiological state of the white matter. We studied th...
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Effect of experimental parameters on high b-value q-space MR images of excised rat spinal cord.
The influence of diffusion time (delta), gradient duration (delta), and TE on the appearance of high b-value q-space diffusion MR images of excised rat spinal cord (SC) was evaluated. The water signal decays in the white (WM) and gray matter (GM) were analyzed when the diffusion was measured perpendicular ( perpendicular) and parallel to the fibers of the SC, using three different approaches: s...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2004
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.20223