Search Results - "Welch, E. Brian"
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Trajectory optimized NUFFT: Faster non‐Cartesian MRI reconstruction through prior knowledge and parallel architectures
Published in Magnetic resonance in medicine (01-03-2019)“…Purpose The non‐uniform fast Fourier transform (NUFFT) involves interpolation of non‐uniformly sampled Fourier data onto a Cartesian grid, an interpolation…”
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Untangling the R2 contrast in multiple sclerosis: A combined MRI-histology study at 7.0 Tesla
Published in PloS one (21-03-2018)“…T2*-weighted multi-echo gradient-echo magnetic resonance imaging and its reciprocal R2* are used in brain imaging due to their sensitivity to iron content. In…”
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Portable, bedside, low-field magnetic resonance imaging for evaluation of intracerebral hemorrhage
Published in Nature communications (25-08-2021)“…Radiological examination of the brain is a critical determinant of stroke care pathways. Accessible neuroimaging is essential to detect the presence of…”
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Characterizing active and inactive brown adipose tissue in adult humans using PET-CT and MR imaging
Published in American journal of physiology: endocrinology and metabolism (01-07-2016)“…Activated brown adipose tissue (BAT) plays an important role in thermogenesis and whole body metabolism in mammals. Positron emission tomography (PET)-computed…”
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Development of a mobile low-field MRI scanner
Published in Scientific reports (05-04-2022)“…Magnetic resonance imaging (MRI) allows important visualization of the brain and central nervous system anatomy and organization. However, unlike…”
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Multisite, multivendor validation of the accuracy and reproducibility of proton‐density fat‐fraction quantification at 1.5T and 3T using a fat–water phantom
Published in Magnetic resonance in medicine (01-04-2017)“…Purpose To evaluate the accuracy and reproducibility of quantitative chemical shift‐encoded (CSE) MRI to quantify proton‐density fat‐fraction (PDFF) in a…”
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Bedside detection of intracranial midline shift using portable magnetic resonance imaging
Published in Scientific reports (07-01-2022)“…Neuroimaging is crucial for assessing mass effect in brain-injured patients. Transport to an imaging suite, however, is challenging for critically ill…”
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Cold exposure induces dynamic, heterogeneous alterations in human brown adipose tissue lipid content
Published in Scientific reports (19-09-2019)“…Brown adipose tissue undergoes a dynamic, heterogeneous response to cold exposure that can include the simultaneous synthesis, uptake, and oxidation of fatty…”
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Prospective real-time head motion correction using inductively coupled wireless NMR probes
Published in Magnetic resonance in medicine (01-10-2014)“…Purpose Head motion continues to be a major source of artifacts and data quality degradation in MRI. The goal of this work was to develop and demonstrate a…”
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Real-Time Compressive Sensing MRI Reconstruction Using GPU Computing and Split Bregman Methods
Published in International journal of biomedical imaging (01-01-2012)“…Compressive sensing (CS) has been shown to enable dramatic acceleration of MRI acquisition in some applications. Being an iterative reconstruction technique,…”
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High-resolution 7T MRI of the human hippocampus in vivo
Published in Journal of magnetic resonance imaging (01-11-2008)“…Purpose To describe an initial experience imaging the human hippocampus in vivo using a 7T magnetic resonance (MR) scanner and a protocol developed for very…”
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An Individualized, Perception-Based Protocol to Investigate Human Physiological Responses to Cooling
Published in Frontiers in physiology (13-03-2018)“…Cold exposure, a known stimulant of the thermogenic effects of brown adipose tissue (BAT), is the most widely used method to study BAT physiology in adult…”
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Statistical comparison of dynamic contrast-enhanced MRI pharmacokinetic models in human breast cancer
Published in Magnetic resonance in medicine (01-07-2012)“…By fitting dynamic contrast‐enhanced MRI data to an appropriate pharmacokinetic model, quantitative physiological parameters can be estimated. In this study,…”
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Canine body composition quantification using 3 tesla fat-water MRI
Published in Journal of magnetic resonance imaging (01-02-2014)“…Purpose To test the hypothesis that a whole‐body fat–water MRI (FWMRI) protocol acquired at 3 Tesla combined with semi‐automated image analysis techniques…”
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On the relationship between the apparent diffusion coefficient and extravascular extracellular volume fraction in human breast cancer
Published in Magnetic resonance imaging (01-06-2011)“…Abstract MRI techniques have been developed that can noninvasively probe the apparent diffusion coefficient (ADC) of water via diffusion-weighted MRI (DW-MRI)…”
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MR fingerprinting with simultaneous T 1 , T 2 , and fat signal fraction estimation with integrated B 0 correction reduces bias in water T 1 and T 2 estimates
Published in Magnetic resonance imaging (01-07-2019)“…MR fingerprinting (MRF) sequences permit efficient T and T estimation in cranial and extracranial regions, but these areas may include substantial fat signals…”
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Potential of compressed sensing in quantitative MR imaging of cancer
Published in Cancer imaging (30-12-2013)“…Classic signal processing theory dictates that, in order to faithfully reconstruct a band-limited signal (e.g., an image), the sampling rate must be at least…”
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DCEMRI.jl: a fast, validated, open source toolkit for dynamic contrast enhanced MRI analysis
Published in PeerJ (San Francisco, CA) (2015)“…We present a fast, validated, open-source toolkit for processing dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) data. We validate it against…”
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Temporal sampling requirements for reference region modeling of DCE-MRI data in human breast cancer
Published in Journal of magnetic resonance imaging (01-07-2009)“…Purpose To assess the temporal sampling requirements needed for quantitative analysis of dynamic contrast‐enhanced MRI (DCE‐MRI) data with a reference region…”
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Imaging methods for analyzing body composition in human obesity and cardiometabolic disease
Published in Annals of the New York Academy of Sciences (01-09-2015)“…Advances in the technological qualities of imaging modalities for assessing human body composition have been stimulated by accumulating evidence that…”
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