Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"ventricular enlargement"”.
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Evaluation of Cerebral Lateral Ventricular Enlargement Derived from Magnetic Resonance Imaging: A Candidate Biomarker of Alzheimer Disease Progression in Vivo
… a 20 percent change from the natural history of ventricular enlargement with respect to genotype. Three dimensional Ti-weighted MRI and cognitive measures were acquired from 504 subjects (NEC n = 152, MCI n = 247 and AD n = 105) participating in the multi-centre Alzheimer's Disease Neuroimaging …
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The Effect of Heart Rate on Normal and Abnormal QRS Voltage
… best single clinical tool for the detection of enlargement of cardiac chambers, particularly the left ventricle. The electrocardiographic diagnosis of left ventricular enlargement is primarily based upon increase in the QRS voltage in conventional limb and precordial leads. | Admittedly, the …
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Distinct contribution of white matter damage to the clinical syndrome of Alzheimer's disease
… controls, and were strongly related to ventricular enlargement. In order to further understand the role of WML, we factored the volume of WML with four other neuroimaging markers affected in Alzheimer's disease and discovered two statistically distinct factors presumed to be due to …
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A morphometric study of the brain ventricles of patients diagnosed with Chronic Hydrocephalus at Groote Schuur Hospital
… which when it accumulates causes an increase in ventricular enlargement and raised intracranial pressure (ICP). Raised intracranial pressure in a fixed volume space is dangerous as it presses onto the brain parenchyma and the surrounding areas and may damage them. Ventricular enlargement is a …
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Assessment and optimisation of MRI measures of atrophy as potential markers of disease progression in multiple sclerosis
… losses were observed in grey matter fraction. Ventricular enlargement (VE) gave similar statistical power and these techniques were robust and reliable; scan-rescan measurement error was <0.01% of brain volume for BBSI and SIENA and <0.04ml for VE. Annual atrophy rates (using SIENA) were -0.78% …
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The Clinical Analysis of Factors Predicting the Need for Shunting in Normal Pressure Hydrocephalus
… NPH symptoms were slected. For investigation of ventricular enlargement and CSF dynamics we measured Evan's ratio,periventricular low density and grade of sulci of Sylvian fissure and convexity in brain computed tomography or brain magnetic resonance image and performed radioisotope …
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Cognition and apathy in normal pressure hydrocephalus
… relates to cognitive outcome and to a measure of ventricular enlargement. A reduction in apathetic symptoms following treatment was associated with better performance in a measure of global cognitive function. Further, larger ventricles (which may indicate greater disease severity/ brain damage) …
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The use of biomaterials for stem cell therapies to prevent myocardial damage post-infarct
… is commonly accompanied by a decrease in left ventricular functioning due to wall thinning and ventricular enlargement. As a result of the slow, or absent, ability of cardiomyocytes to divide and repopulate the infarcted area, the burden of heart function lies on the surrounding tissue; a load …
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Effects of Sex and Aging in the Response to Global Cerebral Hypoperfusion
… were observed. MRI revealed significant ventricular enlargement in BCAS females compared to both sham females and BCAS males by 45 days PSD, and this finding was sustained through endpoint at 90 PSD. Thinning of the corpus callosum was also observed in BCAS females by 90 PSD, indicating …
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Neuroprotective effects of the dual glycogen synthase kinase-3b and phosphodiesterase 7 inhibitor VP3.15 and of an enriched environment in germinal matrix-intraventricular hemorrhage
… preterm newborn (PT). Germinal matrix-intraventricular hemorrhage (GMIVH) is one of the most common and severe complications of prematurity. As a result, PT frequently experience short- and long-term sequelae. These impairments include cerebral palsy, cognitive and motor deficits, or …