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 20 of 26 for “"Non-invasive Assessment"”.
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Non-invasive Assessment of Swallowing and Phonation using High-density Electromyography
… and rehabilitative tools. Unlike conventional assessments that focus on biomechanics and structure, high-density surface electromyography (sEMG) provides detailed insights into muscle physiology and motor activity. However, the rapid, dynamic contractions and complex musculature involved …
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Label-free Optical Approaches for the Non-invasive Assessment of Embryo Quality
… is a key contributor to IVF success. Accurate assessment of embryo quality remains a challenge, which if overcome, would improve the ~30% success rate of IVF, which has remained stagnant or more than a decade. Current evaluations of embryo quality rely on subjective visual inspection or …
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Non-invasive assessment of pulmonary capillary wedge pressure in the elderly by the Valsalva manoeuvre.
Contains fulltext : 30146_noniasofp.pdf (Publisher’s version ) (Open Access)
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Measuring liver stiffness using transient elastography in the non-invasive assessment of chronic hepatitis B
… has become recently available as a new non-invasive method to assess liver fibrosis in patients with chronic hepatitis B (CHB). The present thesis set out to determine the application of liver stiffness measurement in patients with CHB, including the long-term longitudinal changes and …
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Non-invasive assessment of gastrointestinal function using breath test technology : investigations in health and disease.
Assessment of gastric emptying in animals is hampered by the lack of a technique that is noninvasive and does not involve sacrificing the animal. The primary aims of these studies therefore were to develop the breath test for the mouse and then investigate gastric emptying rates in physiological, …
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Potential of faeces for non-invasive assessment of Juan Fernandez fur seals and their environment
… I explored the potential of faecal samples as a non-invasive method to obtain diverse information while lowering sampling cost and logistic complexities. Here, I focused on only three of the multiple topics that can be studied from faecal samples. First, I used 16S rRNA amplicon sequencing to …
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Non-invasive assessment of biofilm growth in the middle ear using a portable low-coherence interferometry system
Otitis media (OM) is the most common illness in children in the United States. Three-fourths of children under the age of three have OM at least once. Children with chronic OM, including OM with effusion and recurrent OM, will often have conductive hearing loss and communication difficulties, and …
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GENOME-WIDE ASSOCIATION STUDY OF NON-INVASIVE ASSESSMENT OF LIVER FIBROSIS IN MASLD: EVIDENCE FROM AN ITALIAN POPULATION
… genome-wide association study (GWAS) using non-invasive fibrosis markers in a large biobank environment. The analysis was performed in the Milan Biobank, a multicenter cohort of 7,025 individuals encompassing healthy blood donors, metabolic dysfunction patients, and liver disease subjects …
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Non-invasive assessment of stress hormones, parasites, and diet, using scat of five felid species in Belize, Central America
… species richness (ESR), and diet using non-invasive scat sampling in a protected forest vs. surrounding non-protected areas in Belize. Field studies relying on non-invasive fecal hormone monitoring are subject to potential hormone degradation in samples exposed to the environment. …
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Non-invasive assessment of bacterial biofilm in the middle ear using low-coherence interferometry/optical coherence tomography and acoustic measurements
Otitis media (OM) is a middle ear infection caused by bacterial growth between the tympanic membrane (TM) and the inner ear. Children with chronic OM, including OM with effusion and recurrent OM, often have conductive hearing loss and communication difficulties, and need surgical treatment. Recent …
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QT-interval adaptation to changes in autonomic balance
… nervous system. In order to have a robust assessment of autonomic balance, there is a need for an ECG-based approach to assess the influence of the sympathetic nervous system. In this thesis, using spectral analysis, we quantify the variability of the QT interval, which is primarily …
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Prediction of 1P/19Q Codeletion Status In Diffuse Glioma Patients Using Preoperative Multiparametric Magnetic Resonance Imaging
… the CNN-based model (0.787 +/- 0.195). However, none of the models performed better than the baseline model that is built with only clinical variables, namely, age, gender, and Karnofsky Performance Score (AUC = 0.703 +/- 0.256). In summary, predicting 1p/19q chromosome codeletion status via MRI …
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Design, analysis, and fabrication of a prototype non-invasive system for assessment of biological and synthetic tissues
A new instrument system for the non-invasive assessment of biological systems has been designed, built and validated. This system utilizes the optical characteristics of a biological system to assess both its static and dynamic response over time. The changes in the optical properties can then be …
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Microfluidic tools for metabolomics
… techniques are accurate and suitable for non-invasive assessment of single embryos. Unfortunately, the process of determining metabolite levels in nanoliters of culture media through fluorometric assays is low-throughput and requires specialized expertise, hindering widespread clinical use …
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Multimodal intravital imaging of tissue structure and cell dynamics in skin using integrated optical coherence and multiphoton microscopy
… for clinical applications to potentially enable non-invasive diagnosis of skin diseases. The methods presented are based on a multimodal microscope that integrates optical coherence and multiphoton microscopy. The development of the integrated microscope was focused on enabling sufficient …
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Evaluation of Global Muscle Innervation Using Multi-Channel Surface Electromyography
… surface electromyography (sEMG) have enabled the non-invasive assessment of neuromuscular function at the muscle and motor unit level. Specifically, sEMG has been used to assess the location of innervation zones (IZs) and the quantity of functioning innervation of targeted muscles. This knowledge …
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Measuring Brain Iron In Healthy Controls And Accessing Venous Abnormalities In Parkinson's Disease Using Mri
… disorders, a robust in vivo quantitative non-invasive assessment of normal brain iron deposition over time is essential. A variety of magnetic resonance imaging (MRI) methods have been used to quantify iron both in vivo and in vitro non-invasively. We first created the baseline of phase …
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Photoacoustic imaging system for fluid flow visualization and biological tissues characterization
… concluded the feasibility of this system for non-invasive assessment and visualization of blood perfusion and biological tissues, which deemed it suitable for implementation in healthcare applications.
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NON-INVASIVE MONITORING OF INTRACRANIAL PRESSURE USING TRANSCRANIAL DOPPLER ULTRASONOGRAPHY
… parameter is not always considered due to its invasive assessment. In this scenario, a non-invasive estimation of ICP (nICP) may be essential, and indeed it has become a Holy Grail in Clinical Neurosciences: extensively searched, albeit never found. This thesis is devoted to the assessment, …
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Computational and experimental time domain, one dimensional models of air wave propagation in human airways
… and compliance variations, suggesting a possible non-invasive assessment of peripheral conditions. A favourable comparison with typical pressure and flow waveforms from impulse oscillometry system, which has recently been introduced as a clinical diagnostic technique, is also shown. The results …
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