Results 261 to 270 of about 176,666 (301)

Proton magnetic resonance spectroscopy in childhood brainstem lesions

Child's Nervous System, 2006
Diagnosis of brainstem lesions in children based on magnetic resonance imaging alone is a challenging problem. Magnetic resonance spectroscopy (MRS) is a noninvasive technique for spatial characterization of biochemical markers in tissues and gives information regarding cell membrane proliferation, neuronal damage, and energy metabolism.We measured the
L, Porto, E, Hattingen, U, Pilatus, M, Kieslich, B, Yan, D, Schwabe, F E, Zanella, H, Lanfermann   +7 more
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Proton magnetic resonance spectroscopy in Creutzfeldt‐Jakob disease

Neurology, 1993
We studied two patients with Creutzfeldt-Jakob disease by in vivo proton magnetic resonance spectroscopy and obtained spectra from an extract of biopsy tissue from a third patient. In vivo spectra from the two patients, 3 months and less than 1 month after symptom onset, revealed only minor changes. A second study of one of the patients 10 months after
Graham GD, Petroff OAC, Blamire AM, Rajkowska G, Goldmanrakic P, Prichard JW   +5 more
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Proton magnetic resonance spectroscopy of brain-stem lesions

Neuroradiology, 2002
The imaging findings of brain-stem lesions are often nonspecific and histological diagnosis is limited because of fear of complications associated with biopsy. A noninvasive method for tissue characterization is therefore highly desirable. We undertook a review of proton magnetic resonance spectroscopy (MRS) of patients with solitary brain-stem lesions
J K, Smith, A, Londono, M, Castillo, L, Kwock   +3 more
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Multivoxel proton magnetic resonance spectroscopy in heat stroke

Clinical Radiology, 2015
To assess the role of proton MR spectroscopy (MRS) in the detection of changes in metabolite levels of the cerebellum after heat stroke (HS).The study group consisted of eight patients after HS, with a Glasgow Coma Scale (GCS) score of 3-9. The MR studies were performed with a 1.5 T system.
J, Li, X Y, Zhang, B, Wang, Z M, Zou, H F, Li, P Y, Wang, J K, Xia   +6 more
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Proton magnetic resonance spectroscopy in ecstasy (MDMA) users

Neuroscience Letters, 2004
The popular recreational drug 3,4-methylenedioxymethamphetamine (MDMA, ecstasy) has well-recognized neurotoxic effects upon central serotonergic systems in animal studies. In humans, the use of MDMA has been linked to cognitive problems, particularly to deficits in long-term memory and learning.
Jörg, Daumann, Thomas, Fischermann, Ulrich, Pilatus, Armin, Thron, Walter, Moeller-Hartmann, Euphrosyne, Gouzoulis-Mayfrank   +5 more
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Proton magnetic resonance spectroscopy of human fetal brain

American Journal of Obstetrics and Gynecology, 1994
In vivo proton magnetic resonance spectroscopy of human fetal brain was performed in the third trimester of pregnancy. Spectra were obtained showing signals assigned to cerebral compounds such as N-acetylaspartate, creatine, and cholines. Relative signal intensities were similar to those observed in neonatal brain spectra recorded during the early ...
A, Heerschap, P P, van den Berg
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Proton magnetic resonance spectroscopy of patients with parkinsonism

Brain Research Bulletin, 2000
We studied cerebral metabolism in 82 patients with nonfamilial parkinsonism, including Parkinson's disease (PD; n = 23), progressive supranuclear palsy (PSP; n = 12), corticobasal degeneration (CBD; n = 19), multiple systemic atrophy (MSA; n = 18) and vascular parkinsonism (VP; n = 10) by using proton magnetic resonance spectroscopy ((1)H-MRS), which ...
K, Abe, H, Terakawa, M, Takanashi, Y, Watanabe, H, Tanaka, N, Fujita, N, Hirabuki, T, Yanagihara   +7 more
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Quantitative Proton Magnetic Resonance Spectroscopy of Childhood Adrenoleukodystrophy

Neuropediatrics, 1998
Cerebral metabolic disturbances in patients with childhood adrenoleukodystrophy (ALD) were assessed by quantitative localized proton MRS. Patient monitoring by follow-up MRS studies served to identify putative markers for disease onset and progression.
Pouwels, P., Kruse, B., Korenke, G., Mao, X., Hanefeld, F., Frahm, J.   +5 more
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Proton Magnetic Resonance Spectroscopy of Pediatric Brain Tumors

Neurosurgery, 1992
1H magnetic resonance spectroscopy allows the regional quantitation of a number of metabolites from the brain in a noninvasive fashion. Spectra were obtained from 5 normal children and 25 children with brain tumors. Choline (Cho), N-acetylaspartate (NAA), creatine and phosphocreatine, and lactate were quantitated in the form of ratios.
Sutton LN, Wang Z, Gusnard D, Lange B, PERILONGO, GIORGIO, Bogdan AR, Detre JA, Rorke L, Zimmerman RA   +8 more
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Proton magnetic resonance spectroscopy study of dyskinesia patients

Movement Disorders, 2007
AbstractOral dyskinesias may occur spontaneously or be induced by medications such as antipsychotics and antidepressants. In this study, single voxel proton magnetic resonance spectroscopy was used to compare metabolite levels in the striatum for (1) 12 patients with drug‐induced tardive dyskinesia (TD), (2) 12 patients with spontaneous oral dyskinesia
Yevgeniy, Kuznetsov, Abdesslem, Khiat, Pierre J, Blanchet, Yvan, Boulanger   +3 more
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