In vivo investigation of restricted diffusion in the human brain with optimized oscillating diffusion gradient encoding
نویسندگان
چکیده
منابع مشابه
Optimized diffusion tensor encoding schemes with anisotropic diffusion weighting
J. Lee, A. L. Alexander Medical Physics, University of Wisconsin, Madison, WI, United States Background/Introduction Diffusion tensor MRI and the associated measures, such as FA, trace {D}, and eigenvector direction, are highly sensitive to image measurement noise. The main strategy to decrease noise sensitivity is to employ uniformly distributed diffusion encoding directions with a diffusion-w...
متن کاملOscillating gradient spin-echo (OGSE) diffusion tensor imaging of the human brain.
PURPOSE The dependence of diffusion tensor imaging (DTI) eigenvalues and fractional anisotropy (FA) on short diffusion times was investigated using oscillating gradient spin echo (OGSE) and pulsed gradient spin echo (PGSE) DTI in the human brain in vivo. THEORY AND METHODS DTI was performed in seven healthy volunteers at 4.7 Tesla (T) with b = 300 s/mm(2) and diffusion times of 4.1 ms (OGSE 5...
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15 صفحه اولProbing microscopic cellular architecture in the mouse brain by oscillating gradient diffusion tensor imaging
the hippocampus showing the granular cell layer of the dentate gyrus (arrows) revealed by DTI contrasts at 160 Hz, which is not discernible at 0 Hz. Corresponding nissl-stained sections indicating the granular cell layer of the dentate gyrus (DG_gr) are shown for anatomical comparison. Bottom panel) Mean ADC in the DG_gr and a region within the CA1 subfield of the hippocampus plotted as a funct...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2013
ISSN: 0740-3194
DOI: 10.1002/mrm.24632