Zobrazeno 1 - 10
of 25
pro vyhledávání: '"N C Silver"'
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 18:162-169
There are currently four problems in characterising small nonuniform lesions or other objects in Magnetic Resonance images where partial volume effects are significant. Object size is over- or under-estimated; boundaries are often not reproducible; m
Autor:
Jamshid Dehmeshki, Alan J. Thompson, Declan T. Chard, P A Brex, David Miller, C M Griffin, Gareth J. Barker, O Ciccarrelli, N C Silver, Kevin R. Peters, Anthony Traboulsee
Publikováno v:
Multiple Sclerosis Journal. 9:566-573
Background: Magnetization transfer ratio (MTR) histogram analysis provides a global measure of disease burden in multiple sclerosis (MS). MTR abnormalities in normal appearing brain tissue (NABT) provide quantitative information on the extent of tiss
Autor:
Alan J. Thompson, Declan T. Chard, Paul S. Tofts, Jamshid Dehmeshki, Hilary Watt, Siobhan M. Leary, David Miller, N C Silver
Publikováno v:
Journal of Neurology. 250:67-74
Background: In 10–15 % of patients with multiple sclerosis (MS), the clinical course is characterized by slow progression in disability without relapses (primary progressive (PP) MS). The mechanism of disability in this form of MS is poorly underst
Publikováno v:
King's College London
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Gadolinium enhanced magnetic resonance imaging detects focal blood-brain barrier breakdown in new inflammatory multiple sclerosis lesions, but such lesions do not correlate with disease progression. To explore whether the latter might relate to subtl
Autor:
P A Brex, Gareth J. Barker, C. M. H. Brierley, I. F. Moseley, David Miller, N C Silver, D. A. S. Compston, GT Plant, Neil J Scolding, S. J. Hickman
Publikováno v:
Neuroradiology. 43:123-128
We describe an MRI technique for quantifying optic nerve atrophy resulting from a single episode of unilateral optic neuritis. We imaged 17 patients, with a median time since onset of optic neuritis of 21 months (range 3-81 months), using a coronal-o
Publikováno v:
Neurology. 51:758-764
Objective: To explore the temporal relation of demyelination and blood-brain barrier breakdown during new lesion formation.Background: Conventional MRI appears sensitive for detecting changes due to MS, but may be limited by poor pathologic specifici
Publikováno v:
Neuroradiology. 39:243-249
Axial fast FLAIR images of the brains of 40 normal volunteers in four age groups between 16 and 55 years were examined and the number and size of areas of increased white-matter signal recorded. Increased signal in the corticospinal tract region was
Publikováno v:
Scopus-Elsevier
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OBJECTIVES: To establish a normative database for magnetisation transfer ratio (MTR) measurements in the white matter of healthy adult brains. Such MTR values were evaluated for regional variation and evidence of differences associated with aging, se
Autor:
N. C. Silver, C C Braun
Publikováno v:
Ergonomics. 38:2207-2220
Previous research has examined the connoted hazard of various colour and signal words separately. The purpose of the present research was to examine the interaction of signal words and colours. Two separate experiments examined the influence of colou
Publikováno v:
Molecular ecology resources. 8(4)
An interactive fortran program (incor) performs the Paul (1989) procedure for testing the null hypothesis that more than two independent population correlations are equivalent. The program also performs subsequent range tests for comparing all possib