Browsing by Subject "Health Sciences, Radiology"
Now showing items 1-12 of 12
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Active Staining for In Vivo Magnetic Resonance Microscopy of the Mouse Brain
(2009)Mice have become the preferred model system for studying brain function and disease. With the powerful genetic tools available, mouse models can be created to study the underlying molecular basis of neurobiology in vivo. ... -
CONE BEAM COMPUTED TOMOGRAPHY (CBCT) DOSIMETRY: MEASUREMENTS AND MONTE CARLO SIMULATIONS
(2010)Cone beam computed tomography (CBCT) is a 3D x-ray imaging technique in which the x-ray beam is transmitted to an object with wide beam geometry producing a 2D image per projection. Due to its faster image acquisition time, ... -
Correlation Imaging for Improved Cancer Detection
(2008-11-10)We present a new x-ray imaging technique, Correlation Imaging (CI), for improved breast and lung cancer detection. In CI, multiple low-dose radiographic images are acquired along a limited angular arc. Information ... -
Development and Optimization of a Dedicated Dual-Modality SPECT-CT System for Improved Breast Lesion Diagnosis
(2010)X-ray mammography is the most widely used breast cancer imaging technique. However, over 400,000 women newly diagnosed each year are misdiagnosed and undergo a biopsy. Current mammography techniques are limited by: (1) low ... -
Development of an Integrated SPECT-CmT Dedicated Breast Imaging System Incorporating Novel Data Acquisition and Patient Bed Designs
(2010)This thesis research builds upon prior work that developed separate SPECT and CT (computed mammotomography, or breast CT) devices that were independently capable of imaging an uncompressed breast in 3D space. To further ... -
Development of MR Thermometry Strategies for Hyperthermia of Extremity and Breast Tumors
(2010)Numerous studies have shown that the combination of radiation therapy and hyperthermia, when delivered at moderate temperatures (40°-45°C) for sustained times (30-90 minutes), can help to provide palliative relief and augment ... -
Four-Dimensional Imaging of Respiratory Motion in the Radiotherapy Treatment Room Using a Gantry Mounted Flat Panel Imaging Device
(2010)Imaging respiratory induced tumor motion in the radiation therapy treatment room could eliminate the necessity for large motion encompassing margins that result in excessive irradiation of healthy tissues. Currently available ... -
Imaging and Characterizing Human Prostates Using Acoustic Radiation Force
(2009)Prostate cancer (PCa) is the most common non-cutaneous cancer in men in the United States. Early detection of PCa is essential for improving treatment outcomes and survival rates. However, diagnosis of PCa at an early stage ... -
Multimodality Functional Imaging in the Rodent Lungs
(2008-11-12)The ability to image ventilation and perfusion enables pulmonary researchers to study functional metrics of gas exchange on a regional basis. There is a huge interest in applying imaging methods to study the large number ... -
On-board Single Photon Emission Computed Tomography (SPECT) for Biological Target Localization
(2010)On-board imaging is useful for guiding radiation to patients in the treatment position; however, current treatment-room imaging modalities are not sensitive to physiology - features that may differentiate tumor from nearby ... -
Practical Considerations with the Clinical Implementation of TG-18 Guidelines
(2010)Quality control of soft-copy displays is critical to ensure the proper contrast rendition of medical images. The American Association of Physicists in Medicine's (AAPM) Task Group 18 (TG-18) has developed a set of testing ... -
Superconducting Radiofrequency Probes for Magnetic Resonance Microscopy, Simulation and Experiments
(2009)In magnetic resonance microscopy, insufficient signal-to-noise ratio currently limits imaging performance. Superconducting probes can potentially increase the sensitivity of the magnetic resonance experiment. However, many ...
