Visualizing a body’s internal structures by MRI is an essential clinical practice. Yet acquiring images in the presence of metal, like the steel screws of an implant, remains challenging because of ...
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Elucidating the workings and development of the brain remains a fertile topic of investigation and one reliant on non-invasive visualization technology like magnetic resonance imaging (MRI). As appl...
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An excess of visceral adipose tissue (VAT), or fat stored in the abdomen, is known to be a dominant risk factor in developing metabolic syndrome, the not fully understood clustering of metabolic and c...
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Generating a set of uniformly-distributed points on the surface of a sphere via a deterministic scheme is important for biomedical imaging and engineering applications, especially MR imaging. A point ...
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Magnetic resonance imaging (MRI) utilizes the signal induced by excited spins when human tissue is subjected to a uniform magnetic field. The individual magnetic moments of the nuclear spins in the ti...
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Current MRI techniques to obtain images of rapidly changing anatomies such as the beating heart or to monitor the flow of fluids such as contrast agents through organs and peripheral vasculature acqui...
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Fat quantification using magnetic resonance imaging (MRI) has important clinical applications including the early diagnosis and quantitative staging of non-alcoholic fatty liver disease (NAFLD). Compa...
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Mapping of effective transverse relaxation rate (R2*) relaxivity has important applications in magnetic resonance imaging (MRI) including blood oxygenation level dependent functional imaging, detectio...
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Current MRI techniques to obtain images of rapidly changing anatomies such as the beating heart or to monitor the flow of fluids such as contrast agents through organs and peripheral vasculature acqui...
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UW–Madison researchers have previously developed “IDEAL,” a multi-echo chemical species separation technique that uses iterative decomposition of water and fat with echo asymmetry and least squa...
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Magnetic resonance imaging (MRI) is highly sensitive to patient motion. Depending on the k-space acquisition trajectory, which determines at what positions of the spatial frequency domain data points ...
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Quantifying the amount of fat in the liver is crucial for the detection of non-alcoholic fatty liver diseases including steatosis, fibrosis, cirrhosis and liver failure.  Accurate fat measurements ca...
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Signal-to-noise ratio (SNR) is utilized in medical imaging as a quantitative measure of image quality. As SNR decreases, it becomes increasingly more difficult to differentiate between important anato...
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Magnetic resonance imaging (MRI) is a medical imaging technique that takes measurements, or “views,” of a subject’s nuclear magnetic resonance (NMR) to form images of internal structures.  Magn...
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Magnetic resonance (MR) has been utilized largely for medical diagnostic applications, but recent advancements have allowed it to replace many previously performed X-ray examinations.  Even more rece...
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Magnetic resonance imaging (MRI) is used to measure nuclear magnetic resonance (NMR) from various substances in human tissue to produce medical images for qualitative and quantitative assessments.  T...
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Nuclear magnetic resonance is the property of magnetic nuclei used in medical imaging techniques like MRI to produce images. The nuclear magnetic resonance of water is known to be dependent on tempera...
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The X-ray source and radiation detector in a conventional computed tomography (CT) system are rotated on a gantry so that the angle at which the X-ray beams intersect the object constantly changes. In...
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In computed tomography (CT) imaging, divergent beam data acquisition modes have the potential to speed up data acquisition and shorten scan time. However, image reconstruction from divergent-beam proj...
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In clinical computed tomography (CT) practice, image artifacts arise when some data is missing or inconsistent, such as in the case of large patients that extend beyond the imaging field of view or pa...
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Of the various imaging techniques used to screen women for early-stage breast cancer, X-ray mammography has proven the most effective. Despite its success, however, this technique suffers from relativ...
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Magnetic resonance (MR) has been utilized largely for medical diagnostic applications, but recent advancements have allowed it to replace many previously performed X-ray examinations. Even more recent...
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Diagnosis of lung disease, such as emphysema, typically is made using whole lung pulmonary function tests to characterize airway obstruction and diffusion abnormalities.  Breath-hold high speed X-ray...
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Recent advances have started to permit the use of magnetic resonance (MR), instead of the more common X-ray technique, for medical monitoring and control of certain therapeutic procedures, otherwise k...
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Tissue stresses and strains are important measures of biomechanical function. Tissue stiffness aids in determining whether tissue is healthy, damaged, healing or pathological in some other way. Ultras...
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