Results 211 to 220 of about 464,749 (232)
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Magnetic resonance spectroscopy in AD
Neurology, 2001Proton MR spectroscopy (MRS) studies have found both decreased N-acetylaspartate (NAA) and increased myo-inositol in the occipital, temporal, parietal, and frontal regions of patients with AD, even at the early stages of the disease. This diffuse NAA decline is independent of regional atrophy and probably reflects a decrease in neurocellular viability.
Perminder S. Sachdev, Michael Valenzuela
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Nuclear magnetic resonance spectroscopy
Analytical Chemistry, 1988Nuclear magnetic resonance (NMR) spectroscopy is one of the most widely used instrumental methods, with applications ranging from the characterization of pure compounds by high-resolution NMR to the diagnosis of disease by magnetic resonance imaging (MRI).
Dallas L. Rabenstein, Wei Guo
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Proton magnetic resonance spectroscopy
Critical Reviews in Neurosurgery, 1999Proton magnetic resonance spectroscopy (MRS) permits in vivo determination of biochemical parameters within brain tissue, utilizing the same magnetic resonance (MR) scanner and head coil that are utilized for conventional MR imaging. This technology has been evolving and improving over the past decade, with most of the current published work based on ...
Zhiyue J. Wang, Robert A. Zimmerman
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Magnetic resonance spectroscopy in vivo
Journal of Biomedical Engineering, 1988Nuclear magnetic resonance (NMR) has become an important non-invasive investigative technique in medicine and biology. The most recent development has been the ability to perform magnetic resonance spectroscopy (MRS) in selected regions within the human body.
D.A. Porter, M.A. Smith
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Magnetic Resonance Spectroscopy
1998The electronic and vibronic states investigated so far were obtained from the Schrodinger equation where the Hamiltonian included only electronic and lattice contributions. Whether the atoms on the lattice sites have a magnetic moment or not was irrelevant since the latter does not contribute to the total energy of the system.
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[Brain magnetic resonance spectroscopy].
Journal de radiologie, 2007MR spectroscopy (MRS) sequences allow noninvasive exploration of brain metabolism during a MRI examination. Their day-to-day use in a clinical setting has recently been improved by simple programming of sequences and automated quantification of metabolites.
Galanaud, Damien +7 more
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Magnetic Resonance Spectroscopy
2007Magnetic resonance imaging (MRI) is the current standard neuroimaging modality for patients with high-grade gliomas (HGG). A valuable addition to the morphologic information obtained from MRI is magnetic resonance spectroscopy (MRS), which provides information regarding the metabolic status of the brain and tumor.
G. Evren Keles +2 more
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Magnetic resonance imaging and spectroscopy
Current Opinion in Neurology, 1996In the past year, magnetic resonance has assumed an increasingly important role in the study of patients with epilepsy that now extends beyond its demonstration of neuroanatomy and neuropathology into the fields of neurochemistry, neurometabolism and neurophysiology.
Graeme D. Jackson, Alan Connelly
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Elasto-magnetic resonance spectroscopy [PDF]
Europhysics Letters (EPL), 1996 A method of detecting and imaging elastic waves and some of the fundamental visco-elastic properties of the matter by MR was analysed. The detection of the phase changes in the transverse magnetization component enables the spectroscopic analysis of absorption, scattering and emission of the elastic waves in the matter. This implies that the method can
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Magnetic resonance spectroscopy in epilepsy
2012Abstract Proton magnetic resonance spectroscopy ( 1 H-MRS) is a noninvasive method for detecting brain metabolites. This chapter focuses on techniques and applications of 1 H-MRS and phosphorus ( 31 P) magnetic resonance spectroscopy ( 31 P-MRS) in the diagnosis of the epilepsies.
Thilo Hammen, Ruben Kuzniecky
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