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.
Results
Showing 1 to 8 of 8 for “"Imaging Physics"”.
-
Three-Dimensional Photoacoustic Computed Tomography: Imaging Models and Reconstruction Algorithms
… optoacoustic tomography, is a rapidly emerging imaging modality that holds great promise for a wide range of biomedical imaging applications. Much effort has been devoted to the investigation of imaging physics and the optimization of experimental designs. Meanwhile, a variety of image …
-
Expectation, the placebo effect and Parkinson's disease : an investigation using high-resolution positron emission tomography
… the combined efforts of neuroscience and imaging physics to optimize the analysis of [¹¹C] raclopride PET data. In Chapter 5, I describe the use of verbal instructions to manipulate patients’ expectations in order to investigate how the likelihood of receiving levodopa influenced dopamine …
-
Image Processing Methods For Dual-Energy Contrast-Enhanced X-Ray Breast Imaging
Imaging of the breast is essential for the early detection and diagnosis of breast cancer. Digital mammography (DM) and digital breast tomosynthesis (DBT) are the current standards of care for breast cancer screening. However, these imaging modalities are insufficient for screening women who have a …
-
Probing the effect of microstructure on water diffusion in engineered or biological materials with MRI
… structure of muscles. Magnetic Resonance Imaging (MRI) is an effective non-invasive technology for studying water transport in biological or engineered systems, and has been increasingly used to probe water diffusion in muscle. Because of the disparity between the length scales over which …
-
Hepatocellular Carcinoma Image-Guided Intervention: Quantitative Characterization of Reagents For Thermochemical Ablation
… distinguishable from tissues with noninvasive imaging modalities, which makes monitoring the delivery of TCA difficult. Image-guided delivery of TCA can help ensure complete ablation of the tumor and margins for assessment of therapeutic response. This research seeks to address these …
-
Inverse problems in fluid dynamics for magnetic resonance velocimetry
I formulate a digital twin approach to the reconstruction of velocity fields from noisy and sparse magnetic resonance velocimetry signals. The method learns the most probable fluid dynamics model that fits the data by solving a Bayesian inverse Navier-Stokes boundary value problem. This jointly …
-
An Exploration of the Feasibility of Combining Radiation Therapy with Psoralen Phototherapy
<p>Radiation therapy (RT) has been a standard-of-care treatment for many localized cancers for decades. Despite being an effective treatment modality for many clinical presentations, the efficacy of RT against cancer can be limited due to local recurrence, metastatic spread, and radiation …
-
ABSOLUTE QUANTIFICATION IN SMALL PLANT RADIOTRACER STUDIES
… statistical accuracy of counting data using PET imaging techniques. Improving the statistical precision of radionuclide tracking data will add to the analysis options. Another important goal is to measure the absolute photosynthetic rate. The standard approach in plant radiotracer experiments is …