- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 321 to 330 of 687 (0.009 seconds)| 321 |
High resolution and rapid MRId'Arcy, James Andrew January 2011 (has links)
No description available.
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| 322 |
The assessment of tumour boundaries using ultrasound elastographyGarcia, Leo January 2011 (has links)
No description available.
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| 323 |
TMS combined with fMRIBungert, Andreas January 2010 (has links)
No description available.
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| 324 |
The unstable carotid plaque and brain ischaemia : non-invasive detection, pathophysiological and clinical implicationsAltaf, Nishath January 2008 (has links)
The aim of this thesis was to test the hypothesis that the detection of plaque haemorrhage by Magnetic Resonance Imaging (MRI PH+) is a clinical valid biomarker of unstable carotid disease in patients with symptomatic high grade carotid disease. This hypothesis was tested by a series of studies in patients with symptomatic high grade stenosis including a comparison of MRI PH+ to histological assessment of plaque instability, and an examination of the relationships between MRI PH+ and cerebral ischaemia as assessed by microembolisation, cerebral white matter hyperintense lesions (WMHL), diffusion weighted cerebral imaging (DWI) and clinical assessment. MRI PH+ carotid plaques were associated with features of active plaque disease, including inflammation. The senstiviity and specificity of MRI PH+ to detect spontaneous and intra-operative microembolic signals (detected by transcranial Doppler) was high (85 and 83%) and moderate (51 and 54%), respectively. Cerebral WMHL were found to be more prevalent (mean number [S.D.]: 3.3[3.3] vs. 2.1[2.5]) and larger (mean volume [S.D.]: 10.3[9.3] vs. 7.0[6.6] ml) in hemispheres ipsilateral to MRI PH+ rather than MRI PH- carotid plaques. MRI PH+ increased the risk of developing cerebral DWI ischaemic lesions (odds ratio 6.2; 95% C.I. 1.7-21.8) and were associated with multiple lesions of different ages. MRI PH + symptomatic carotid plaques increased the short-term risk of ipsilateral ischaemic neurological events with a hazard ratio of 5.9 (95% C.I. 1.4- 25.6); but not in the contralateral, asymptomatic side. This work has demonstrated that MRI PH is a potential valid biomarker of plaque instability in patients with symptomatic carotid stenosis. Further studies are required to se if risk stratification can be improved using other plaque features and improved localization of plaque haemorrhage.
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| 325 |
Investigating the functional neuroanatomic basis of oscillatory brain activity in healthy individuals and in patients with schizophreniaDiukova, Ana January 2009 (has links)
No description available.
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| 326 |
Full field laser doppler blood flow sensorDiwei He, M. Res January 2010 (has links)
No description available.
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| 327 |
2D and 3D Digital Shape Modelling StratergiesLopez, Silvia Rueda January 2010 (has links)
No description available.
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| 328 |
The development of analyte responsive nanosensors for application within regenerative medicineHarrington, Helen January 2010 (has links)
No description available.
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| 329 |
Tailored RF pulse design for 7T MRIHurley, Aaron Christopher January 2011 (has links)
No description available.
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| 330 |
High Speed NMR ImagingOrdidge, Roger John January 1981 (has links)
No description available.
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