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 13 of 13 for “"breast tomosynthesis"”.
-
Breast Tomosynthesis: Aspects on detection and perception of simulated lesions
… and masses) in digital mammography (DM) and breast tomosynthesis (BT). Perception in BT image volumes were also investigated by evaluating certain reading conditions. The first study concerned the effect of system noise on the detection of masses and microcalcification clusters in DM images …
-
TOMOGRAPHIC IMAGE RECONSTRUCTION: IMPLEMENTATION, OPTIMIZATION AND COMPARISON IN DIGITAL BREAST TOMOSYNTHESIS
… most effective approach to detecting early stage breast cancer in the past decades of years. Tomosynthetic breast imaging is a potentially more valuable 3D technique for breast cancer detection. The limitations of current tomosynthesis systems include a longer scanning time than a conventional …
-
Computer Aided Detection of Masses in Breast Tomosynthesis Imaging Using Information Theory Principles
<p>Breast cancer screening is currently performed by mammography, which is limited by overlying anatomy and dense breast tissue. Computer aided detection (CADe) systems can serve as a double reader to improve radiologist performance. Tomosynthesis is a limited-angle cone-beam x-ray imaging modality …
-
Measurement of Tumor Extent and Effects of Breast Compression in Digital Mammography and Breast Tomosynthesis
Breast cancer is the most common form of cancer affecting women in the western countries. Today x-ray digital mammography (DM) of the breast is commonly used for early detection of breast cancer. However, the sensitivity of mammography is limited, mainly due to the fact that a 3D volume is …
-
A multimodal breast cancer imaging system using coregistered dynamic diffuse optical tomography and digital breast tomosynthesis
… noninvasive functional imaging method for breast cancer diagnosis and neoadjuvant chemotherapy monitoring. In particular, the multimodal approach of combining DOT with x-ray digital breast tomosynthesis (DBT) is especially synergistic as DBT prior information can be used to enhance the DOT …
-
Image reconstruction and imaging configuration optimization with a novel nanotechnology enabled breast tomosynthesis multi-beam X-ray system
<p>Digital breast tomosynthesis is a new technology that provides three-dimensional information of the breast and makes it possible to distinguish the cancer from overlying breast tissues. We are dedicated to optimizing image reconstruction and imaging configuration for a new multi-beam parallel …
-
Missed Breast Cancer Risk Factors and Clinicopathologic Features: A Six-Year Analysis of Data from a Single Institution
BACKGROUND: Breast cancer is the second most commonly diagnosed cancer in women, but mortality has been consistently decreasing due to the introduction of screening mammography and continual innovations in treatment [1,13,15]. However, cancers missed on screening and diagnostic imaging studies …
-
Perceptually Relevant Measurements in Tomosynthesis Imaging
… relevant to mammography like radiation dose, breast density and thickness, pixel size, arc span and number of projections in the case of digital breast tomosynthesis (aka 3D mammography) can alter the cancer screening diagnosis. Therefore, it is necessary to find which configuration is best so …
-
Optimization of a High-Energy X-Ray Inline Phase Sensitive Imaging System for Diagnosis of Breast Cancer
Breast cancer screening modalities have received constant research attention that are mainly focused on their abilities to detect cancer at an early stage while reducing the risks of harmful radiation dose delivered to the patient. As a result, numerous advancements have been made over the last two …
-
Investigation of optical and imaging characteristics of fluorescent screens for use in digital imaging detectors suitable for telemedicine
… short decay times in order to be used in digital breast tomosynthesis (DBT) and dual energy imaging (DE). The aim of the present PhD thesis is the investigation of the optimum powder phosphor scintillator for use in a CMOS based digital imaging system and the investigation of the combination of …
-
Mammographic density in relation to breast cancer Tumor characteristics, mode of detection, and density assessments
… density reflects the composition of the breast tissue and can be measured by different methods. Mammography has a lower sensitivity in women with dense breasts, and women with dense breasts have a higher incidence of breast cancer than do women with non–dense breasts. Furthermore, there …
-
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 …
-
Development of High-performance Flexible Poly-Si Thin Film Transistors and GaAs PIN Photodiode for Advanced X-ray Imaging
… spatial resolution applications such as digital breast tomosynthesis (DBT) and fluoroscopy. In this work, a flexible imager which can conform to non-flat surface and potentially be manufactured at lower costs is designed with active pixel sensor (APS) circuit architecture, which is enabled by …