Results 1 to 10 of about 292,211 (290)
Angular Upsampling in Infant Diffusion MRI Using Neighborhood Matching in x-q Space [PDF]
Frontiers in Neuroinformatics, 2018 Diffusion MRI requires sufficient coverage of the diffusion wavevector space, also known as the q-space, to adequately capture the pattern of water diffusion in various directions and scales.
Geng Chen +6 more
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Diffusion MRI sampling schemes bias diffusion metrics and tractography [PDF]
Frontiers in NeuroimagingIntroductionDiffusion MRI is increasingly used to study white-matter architecture, but tractography and diffusion metrics can be biased by different sampling schemes.
Ivanei Bramati +12 more
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Renal MRI Diffusion: Experimental Protocol [PDF]
, 2021 AbstractRenal diffusion-weighted imaging (DWI) can be used to obtain information on the microstructure of kidney tissue, and has the potential to provide MR-biomarkers for functional renal imaging. Here we describe in a step-by-step experimental protocol the MRI method for measuring renal diffusion coefficients in rodents using ADC or IVIM models. Both
Periquito, J.S. +4 more
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Diffusion MRI of the Hippocampus
The Journal of Neuroscience, 2023 The hippocampus is a brain structure that plays key roles in a variety of cognitive processes. Critically, a wide range of neurological disorders are associated with degeneration of the hippocampal microstructure, defined as neurons, dendrites, glial cells, and more.
Bradley G. Karat +2 more
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The Saudi Journal of Gastroenterology, 2020 Background/Aims: The development of infection in pancreatitis increases the mortality rate up to 32%. Therefore, it is important to identify patients who are at high risk of developing infection, at an early stage. The objectives of the study were (a) to
Binit Sureka +8 more
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Association between in-scanner head motion with cerebral white matter microstructure: a multiband diffusion-weighted MRI study [PDF]
PeerJ, 2014 Diffusion-weighted Magnetic Resonance Imaging (DW-MRI) has emerged as the most popular neuroimaging technique used to depict the biological microstructural properties of human brain white matter.
Xiang-zhen Kong
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Magnetic resonance imaging prospects of prognostic value in women pelvic pathology
Сибирский научный медицинский журнал, 2021 Aim of the study was to estimate the prognostic value of perfusion and diffusion magnetic resonance imaging (MRI) methods in systemic evaluation of perifocal changes of malignant masses in women’s pelvis. Material and methods. A retrospective analysis of
T. A. Bergen +3 more
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Scanner Invariant Representations for Diffusion MRI Harmonization [PDF]
, 2020 Purpose: In the present work we describe the correction of diffusion-weighted MRI for site and scanner biases using a novel method based on invariant representation. Theory and Methods: Pooled imaging data from multiple sources are subject to variation
Abdi H +8 more
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Geodesic Uncertainty in Diffusion MRI
Frontiers in Computer Science, 2021 We study theoretical and operational issues of geodesic tractography, a geometric methodology for retrieving biologically plausible neural fibers in the brain from diffusion weighted magnetic resonance imaging.
Rick Sengers, Luc Florack, Andrea Fuster
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Diffusion tensor MRI phantom exhibits anomalous diffusion [PDF]
2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014 This paper reports diffusion weighted MRI measurements of cyclohexane in a novel diffusion tensor MRI phantom composed of hollow coaxial electrospun fibers (average diameter 10.2 μm). Recent studies of the phantom demonstrated its potential as a calibration standard at low b values (less than 1000 s/mm2) for mean diffusivity and fractional anisotropy ...
Ye, Allen Q +5 more
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