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 82 for “"DWI"”.
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Hubungan antara kepuasan kerja dengan kinerja karyawan outsourcing PT. Dwi Jaya Kota Pasuruan
… bidang pemerintahan, tenaga outsourcing dari PT. Dwi Jaya bekerja sebagai karyawan penyapu jalan. Banyaknya permasalahan dalam bekerja, membuat sebagian karyawan menjadi tidak puas. Dalam bekerja, kepuasan kerja berkaitan langsung dengan kinerja karyawan. Jika kepuasan kerja tidak terpenuhi, maka …
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Quantitative Dwi As An Early Imaging Biomarker of The Response to Chemoradiation In Esophageal Cancer
… in the tumor biology. Diffusion Weighed Imaging (DWI) is an MRI modality which is sensitive to microscopic motion of water molecules in tissue. Quantitative DWI provides a measure of the cellular microenvironment which is impacted by cellularity, extra-cellular volume fraction, structure of the …
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Klinisch stumme Hirninfarkte – Bedeutung des initialen Läsionsmusters für die Wahrscheinlichkeit neuer Läsionen auf diffusionsgewichteten MRT-Sequenzen bei Schlaganfallpatienten
… auf diffusionsgewichteten MRT- Sequenzen (DWI-Läsionen) auf. Diese neuen DWI-Läsionen treten meist ohne klinisches Korrelat auf. Sie sind jedoch mit einem erhöhten Risiko für nachfolgende klinisch manifeste vaskuläre Ereignisse assoziiert. Ein unabhängiger Risikofaktor für das Auftreten …
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Direct Waveform Inversion Using Explicit Time-Space Causality Principle
I have developed a Direct Waveform Inversion (DWI) scheme to simultaneously address several existing challenges in full waveform inversion (FWI). A key ingredient in the DWI is the explicit use of the wavefield time-space causality property in the inversion, which allows us to convert the global …
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Functional Magnetic Resonance Imaging of Breast Cancer
… performance of diffusion-weighted imaging (DWI) models in the breast using a systematic review and meta-analysis. Advanced diffusion models have been proposed that may improve the performance of standard DWI using the apparent diffusion coefficient (ADC) to discriminate between malignant and …
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Der Einfluss von Plaquemorphologie und anderen prädiktiven Faktoren auf das Auftreten von Mikroembolien während der Stentgeschützten Perkutanen Angioplastie der Karotiden (SPAC)
… vor und nach Intervention wurde ein zerebrales DWI-MRT erstellt und auf mikroembolische Infarkte untersucht. Ergebnisse: Der Weichplaqueanteil korrelierte positiv mit der Zahl neuer DWI-Läsionen nach SPAC (p=0.09) und signifikant mit der Fläche neuer DWI-Läsionen (p=0.05). Ulzerierte Plaques …
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Assessing the Effects of the Ignition-Interlock Device on Recidivism
… the ignition-interlock device’s effect on DWI recidivism when used during different post-arrest phases, including pretrial, probation, and combined pretrial and probation combined. Propensity score matching is used to account for the selection bias commonly present in observational studies …
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Predictive models of tissue outcome in acute human cerebral ischemia using diffusion and perfusion weighted MRI
Diffusion (DWI) and perfusion weighted (PWI) magnetic resonance imaging (MRI) provide significant insight into acute stroke and can potentially be useful for clinical decision-making. In particular, current therapeutic decisions for acute human cerebral ischemia are typically based on time of …
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Diffusion Weighted MR Imaging in the Differentiation between Metastatic and Benign Lymph Nodes in Canine Patients with Head and Neck Disease
… Diffusion weighted magnetic resonance imaging (DWI) has demonstrated the ability to differentiate metastatic from inflammatory/benign lymph nodes in clinical studies with human cancer patients through the calculation of quantitative values of diffusion termed apparent diffusion coefficients …
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Application of diffusion weighted imaging in studying motor control and moving towards higher resolution diffusion imaging
Diffusion weighted imaging (DWI) is a magnetic resonance imaging technique that is able to give valuable insight into neuronal structure in vivo. By looking at the diffusion of water molecules, information on the integrity of different fiber pathways are able to be observed. One particular …
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Biochemistry of the uterus studied by magnetic resonance techniques
… IMaging (SLIM) and Diffusion-Weighted Imaging (DWI) in studies of uterine biochemistry. The work presented strives to: (1) investigate the relation between biochemical and structural heterogeneity in normal and abnormal uterus using high resolution $\sp{31}$P magnetic resonance spectroscopy …
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Albumin Therapy in Acute Stroke Patient
… Scale (NIHSS) and diffusion-weighted imaging (DWI) were serially checked. There was no adverse effect related to albumin therapy. Although there was no significant difference in both baseline NIHSS score and DWI lesion volume on admission, the NIHSS scores at the 14th day after treatment and …
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Targeted radiotherapy in metastatic neuroendocrine tumours: clinical and experimental studies
… introduced therapy. Diffusion weighted MRI (DWI) is a new imaging technique reflecting the microenvironment of tumours and is maybe useful for treatment response evaluation. Aims of the thesis project were to identify predictive factors for response and long-term outcome after PRRT, and …
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Generative models of brain connectivity for population studies
… is measured via Diffusion Weighted Imaging (DWI), and functional connectivity is assessed using resting-state functional Magnetic Resonance Imaging (fMRI). We first develop a probabilistic model to merge information from DWI tractography and resting-state fMRI correlations. Our formulation …
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[57]Fe Mossbauer spectroscopy and complementary analysis of tin coated steel.
… and can be identified. Commercially produced DWI tinplate shows some signs of FeSn2 on the ironed walls where temperatures reach 200°C, and no intermetallics on the base where compressive force has been used to compact the tinplate to a required thickness. By heat treating laboratory …
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Validation of magnetic resonance imaging (MRI) as a tool to detect inflammation in the brain
… techniques included diffusion-weighted imaging (DWI), quantitative magnetization transfer (QMT), and magnetic resonance spectroscopic imaging (MRSI). EEGs were recorded at resting-state and during performance of an attention task. Vaccine administration induced an increase in fatigue and …
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fMRI assessment of ischemic stroke in humans
… the penumbra region. Diffusion weighted image (DWI) is a widely used and robust tool to detect ischemia lesions. Unfortunately, DWI can only quickly and accurately detect the location of lesions, however, it cannot distinguish the infarct and penumbra, which is vital to act on further treatment. …
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Development of Advanced Mr-Guided Adaptive Radiation Therapy Methods For Head & Neck Cancers On The 1.5T Mr-Linac
… techniques such as diffusion-weighted imaging (DWI). The aims of this dissertation are to validate the existing adaptive workflows for HNC on the MR-linac and perform technological validation of preliminary steps for these advanced ART strategies.</p> <p> First, we measured the dose distribution …
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Dynamic Contrast-Enhanced MRI and Diffusion-Weighted MRI for the Diagnosis of Bladder Cancer
… MRI (DCE-MRI) and diffusion-weighted MRI (DWI) to improve the detection and staging and to enable the prediction of chemotherapeutic response in bladder cancer. A total of fifty-three patients were enrolled in the study. Different inclusion criteria were established for three different …
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