Chris A Clark
Affiliation: St George's Hospital Medical School
- Diffusion time dependence of the apparent diffusion tensor in healthy human brain and white matter diseaseC A Clark
Lucas MRSI Center, Stanford, California, USA
Magn Reson Med 45:1126-9. 2001..Similar findings in two multiple sclerosis plaques indicated that the size of the water diffusion space in the lesion did not exceed this dimension...
- In vivo mapping of the fast and slow diffusion tensors in human brainChris A Clark
Lucas MRSI Center, Department of Radiology, Stanford University, Stanford, California, USA
Magn Reson Med 47:623-8. 2002..Maps depicting the principal direction of the slow tensor indicated alignment with the fast tensor and the known orientation of the WM pathways...
- Diffusion tensor imaging in spinal cord: methods and applications - a reviewChris A Clark
St George s Hospital Medical School, Cranmer Terrace, London SW17 0RE, UK
NMR Biomed 15:578-86. 2002..In this review current technical aspects, clinical applications and the suggested future development of spinal cord diffusion imaging are discussed...
- White matter fiber tracking in patients with space-occupying lesions of the brain: a new technique for neurosurgical planning?Chris A Clark
Department of Clinical Neuroscience, St George s Hospital Medical School, Cranmer Terrace, London SW17 0RE, UK
Neuroimage 20:1601-8. 2003..We present here preliminary findings using the fiber tracking technique in four patients with space-occupying lesions and discuss the potential and limitations of the technique for lesion localization and neurosurgical planning...
- White matter structural decline in normal ageing: a prospective longitudinal study using tract-based spatial statisticsThomas R Barrick
Centre for Clinical Neuroscience, St George s, University of London, Cranmer Terrace, London, SW17 0RE, UK
Neuroimage 51:565-77. 2010..Common changes across different diffusion characteristics are discussed...
- Semiautomatic tractography: motor pathway segmentation in patients with intracranial vascular malformations. Clinical articleTiernan J D Byrnes
Centre for Clinical Neuroscience, St George s University of London, Cranmer Terrace, London, UK
J Neurosurg 111:132-40. 2009....
- Singularities in diffusion tensor fields and their relevance in white matter fiber tractographyThomas R Barrick
Department of Clinical Neurosciences, St George s Hospital Medical School, London SW17 0RE, UK
Neuroimage 22:481-91. 2004..In order to highlight the relevance of singularities in tracking white matter structures, we determined their effect on computation of the cortico-spinal pathway...
- Atlas-based segmentation of white matter tracts of the human brain using diffusion tensor tractography and comparison with classical dissectionI Nigel C Lawes
Department of Basic Medical Sciences, St George s Hospital Medical School, Cranmer Terrace, London SW17 0RE, UK
Neuroimage 39:62-79. 2008..We show close correspondence of the tracts generated from the atlas with tracts isolated with classical dissection of post-mortem brain tissue...
- Multimodal MRI in cerebral small vessel disease: its relationship with cognition and sensitivity to change over timeArani Nitkunan
Centre for Clinical Neuroscience, St George s, University of London, Cranmer Terrace, London SW17 0RE, UK
Stroke 39:1999-2005. 2008..In patients with symptomatic sporadic small vessel disease, we determined which MRI parameters best correlated with cognitive function on cross-sectional analysis and which changed over a period of 1 year...
- Feasibility study of non Carr Purcell Meiboom Gill single shot fast spin echo in spinal cord diffusion imagingPatrick H Le Roux
General Electric Medical Systems, 283 rue de la Miniere, 78533 Buc Cedex, France
MAGMA 14:243-7. 2002..The current solutions to this problem reduce the available signal by one half. We present the first volunteer study of a sequence which does not suffer from this loss of signal while measuring diffusion coefficients...
- Correlations between MRS and DTI in cerebral small vessel diseaseArani Nitkunan
Centre of Clinical Neurosciences, St George s, University of London, London, UK
NMR Biomed 19:610-6. 2006..It provides evidence that DTI identifies axonal disruption in white matter tracts...
- EEG-fMRI in children with pharmacoresistant focal epilepsyXavier De Tiège
Neuroscience Unit, UCL Institute of Child Health, London, United Kingdom
Epilepsia 48:385-9. 2007..To evaluate the usefulness of EEG-combined functional magnetic resonance imaging (EEG-fMRI) to localize epileptogenic sources...
- White matter pathway asymmetry underlies functional lateralizationThomas R Barrick
Centre for Clinical Neuroscience, Division of Cardiac and Vascular Sciences, St George s University of London, UK
Cereb Cortex 17:591-8. 2007..Additional leftward asymmetries connecting the parietal and frontal lobes to the temporal lobe may be more closely related to laterality of language...