Results 271 to 280 of about 260,635 (346)

Proton magnetic resonance spectroscopy in frontotemporal dementia

Journal of Neurology, 2006
This study of frontotemporal dementia (FTD) was carried out to determine whether MR spectroscopy can provide an in vivo marker for the neuronal loss and gliosis that occur in this condition. We compared spectra in frontal and temporal regions known to be affected early in the course of the disease with spectra in the parietal lobe that is spared until ...
Coulthard E, Firbank M, English P, Welch J, Birchall D, O'Brien J, Griffiths TD   +6 more
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Proton magnetic resonance spectroscopy

Journal of Chemical Education, 1988
In this article, the author will demonstrate the interpretation of NMR spectra and use them to determine molecular structures.
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Proton Magnetic Resonance Spectroscopy

2002
Approximately 85%-90% of patients with multiple sclerosis (MS) will begin their disease with a course of relapses and remissions and are therefore classified as having relapsing-remitting (RR) MS [1]. Some of these patients will eventually go on to develop a progressive disability that is characterized by a slow, irreversible deterioration over time ...
Z. Caramanos, A. C. Santos, S. J. Francis, S. Narayanan, D. Pelletier, D. L. Arnold   +5 more
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Proton magnetic resonance spectroscopy findings of hemangioblastoma

Japanese Journal of Radiology, 2010
We report a case of proton magnetic resonance spectroscopy (MRS) of hemangioblastoma in a 56-yearold man with a history of hyperlipidemia who was suffering from an equilibrium disorder. Proton MRS revealed a high mobile lipids (Lip) peak between 0.9 and 1.4 ppm, which was compatible with histologically proven lipids in the tumor.
Tomonori, Isobe, Tetsuya, Yamamoto, Hiroyoshi, Akutsu, Izumi, Anno, Masanari, Shiigai, Alexander, Zaboronok, Tomohiko, Masumoto, Shingo, Takano, Akira, Matsumura   +8 more
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Proton functional magnetic resonance spectroscopy in rodents

NMR in Biomedicine, 2020
Proton functional magnetic resonance spectroscopy (1H‐fMRS) in the human brain is able to assess and quantify the metabolic response due to localized brain activity. Currently, 1H‐fMRS of the human brain is complementary to functional magnetic resonance imaging (fMRI) and a recommended technique at high field strengths (>7 T) for the investigation ...
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Proton magnetic resonance spectroscopy in Kennedy disease

Journal of the Neurological Sciences, 2009
The purpose of this study was to investigate the metabolic abnormalities in Kennedy disease (KD) patients using proton magnetic resonance spectroscopy. Five patients with KD showing typical phenotype were compared with eight age-matched, healthy control subjects.
Chieh-Hsun, Lee, Ping-Hong, Lai, Chin-San, Liu, Jie-Yuan, Li   +3 more
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Proton Magnetic Resonance Spectroscopy of Hydrocephalic Infants

Pediatric Neurosurgery, 2007
<i>Objective:</i> The authors present the first report evaluating neonates with chronic hydrocephalus using proton magnetic resonance spectroscopy (1H MRS). The goals of the study were (1) to determine absolute brain metabolite concentrations in premature infants and neonates with hydrocephalus and age-matched controls, (2) conduct an ...
Sean A, McNatt, J Gordon, McComb, Marvin D, Nelson, Stefan, Bluml   +3 more
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Hemimegalencephaly: Localized Proton Magnetic Resonance Spectroscopy In Vivo

Epilepsia, 1995
Summary: Two children with hemimegalencephaly were examined by magnetic resonance imaging (MRI) and localized proton MR spectroscopy (MRS). In both cases, structural changes in the enlarged hemisphere included pachy‐or polymicrogyria and gliosis of white matter.
Hanefeld, F., Kruse, B., Holzbach, U., Christen, H., Merboldt, K., Haenicke, W., Frahm, J.   +6 more
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Phenylketonuria: Diffusion Magnetic Resonance Imaging and Proton Magnetic Resonance Spectroscopy

Journal of Computer Assisted Tomography, 2003
Two patients with phenylketonuria are reported with white matter lesions. Diffusion magnetic resonance (MR) imaging revealed restricted diffusion patterns (high signal) on b = 1000 s/mm2 images associated with low apparent diffusion coefficient values ranging between 0.44 x 10-3 mm2/s and 0.56 x 10-3 mm2/s.
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Cerebral Proton Magnetic Resonance Spectroscopy in Rett Syndrome

Neuropediatrics, 1995
Combined MRI/MRS studies were performed in 9 girls with Rett syndrome of different ages. NAA, as marker of neuronal tissue, was found to decrease with increasing age. There was no evidence for a defective energy metabolism. The data point towards a probably secondary degenerative process in the pathogenesis of Rett syndrome.
Hanefeld, F., Christen, H., Holzbach, U., Kruse, B., Frahm, J., Haenicke, W.   +5 more
openaire   +3 more sources