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 36 for “"breast imaging"”.
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Frequency Domain Ultrasound Waveform Tomography Breast Imaging
… tomography is an emerging modality for imaging breast tissue for the detection of disease. Using the principles of full waveform inversion, high-resolution quantitative sound speed and attenuation maps of the breast can be created. In this thesis, we introduce some basic principles of …
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CONTRAST-ENHANCED MAMMOGRAPHY: THE EMERGENT CONTRAST-ENHANCED BREAST IMAGING MODALITY
… (CEM), graded according to 2022 CEM-dedicated Breast Imaging Reporting and Data System (BI-RADS) lexicon, is associated with breast density, menstrual status, and age. Methods: This bi-centric retrospective analysis included CEM examinations performed for second-level assessment of suspicious …
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Development Of An Accurate Benchmarking System For Microwave Breast Imaging
… of benchmarking system for microwave imaging systems. The current benchmarking tools for microwave imaging setups are not adaptable. A novel method for of the development of a dielectric phantom using regression analysis is presented. This is followed by a discussion of the design of a …
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Synergistic Combination of Microwaves and Acoustic Signals: Towards Improved Breast Imaging
Microwave-based breast imaging techniques offer the convenience of frequently-repeated scans involving no breast compression, non-ionizing radiation, inexpensive scan costs, sensitivity to water content and low-complexity 3D image reconstruction. These benefits are well-suited for its application …
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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 …
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System Optimization and Iterative Image Reconstruction in Photoacoustic Computed Tomography for Breast Imaging
… as optoacoustic tomography (OAT), is an emerging imaging technique that has developed rapidly in recent years. The combination of the high optical contrast and the high acoustic resolution of this hybrid imaging technique makes it a promising candidate for human breast imaging, where conventional …
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Improvement of image reconstruction speed with GPU in cone beam CT breast imaging
Breast cancer is the most common and the second lethal cancer among women in the United States. Our group is constructing a dedicated cone beam breast CT (CBCT) system to provide true 3D image to improve the screening and diagnostic of breast cancer. Our result shows that dedicated CBCT out-perform …
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Evaluation of a Dedicated SPECT-CT Mammotomography System for Quantitative Hybrid Breast Imaging
… a dedicated three-dimensional (3D) dual-modality breast imaging system for enhanced semi-automated, quantitative clinical imaging. This novel hybrid imaging system combines functional or molecular information obtained with a SPECT subsystem with high-resolution anatomical imaging obtained with a …
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Absolute Quantification of Tc-99M Activity Distributions Using A Planar Molecular Breast Imaging Commercial System
<p>Molecular breast imaging (MBI) uses two dedicated-breast semiconductor detectors to visualize the preferential uptake of technetium-99m-sestamibi (<sup>99m</sup>Tc-sestamibi) by breast cancer cells relative to surrounding benign breast tissues. Clinically, MBI is used primarily as a …
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A circuit model for diffusive breast imaging and a numerical algorithm for its inverse problem
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Selection and Evaluation of a Silver Nanoparticle Imaging Agent for Dual-Energy Mammography
… contrast-enhanced (CE) dual-energy (DE) x-ray breast imaging has emerged as an exciting, new modality to provide high quality anatomic and functional information of the breast. The combination of these data in a single imaging procedure represents a powerful tool for the detection and diagnosis …
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The CNL as Information Manager
… nurse leader was introduced to the comprehensive breast center radiology staff and physicians to support a new quality initiative to optimize screening for high risk women. The project was conducted in the breast imaging microsystem and in collaboration with the genetic counseling and cancer risk …
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Relationship-Centered Communication In Breast Cancer Screening: An Interdisciplinary Training Model
<p>Breast cancer screening is essential for early detection and reducing disease progression. However, its underuse contributes to late-stage diagnoses, adverse health consequences, and reduced survival rates. Research has shown that high-quality communication significantly influences women's …
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Breast ultrasound in females 35 years old and below at a tertiary referral academic center in Cape Town, South Africa: indications and outcomes analysis, a retrospective quantitative study
Title: Breast ultrasound in females 35 years old and below at a tertiary referral academic center in Cape Town, South Africa: indications and outcomes analysis, a retrospective quantitative study. Background A high number of patients are referred to our resource limited tertiary institution for …
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Dual-modality thermoacoustic and photoacoustic imaging
Diagnosis of early breast cancer is the key to survival. The combined contrasts from thermoacoustic and photoacoustic tomography: TAT and PAT) can potentially predict early stage breast cancer. We have designed and engineered a breast imaging system integrating both thermoacoustic and photoacoustic …
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An investigation into the design of an image reconstruction algorithm for continuous wave tomosynthesis
… many theoretical advantages over traditional breast imaging techniques, like mammography. These theoretical advantages include improved spatial resolution, better information weighting, and the ability to resolve structures hidden by tissue overlap. However, unlike mammography, tomosynthesis …
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Fabrication of Ultrasound Transducers and Arrays Integrated within Needles for Imaging Guidance and Diagnosis
… probes and limited superficial high frequency imaging, the use of a biopsy needle with an integrated transducer that is capable of minimally invasive and high-resolution ultrasound imaging is proposed. Such a design would overcome the compromise between resolution and penetration depth which is …
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Breast cancer, medical imaging, and cancer genetics. A new genetic concept regarding the causes and prevention strategies of cancer is presented
Breast cancer is the most common cancer type in the United Kingdom. Many women with breast cancer do not show any noticeable symptoms in their early stages, hence regular breast screening is important. In this research focus is on medical imaging and its role in breast cancer screening, diagnosis, …
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Advanced Projection Ultrasound Imaging with CMOS-based Sensor Array: Development, Characterization, and Potential Medical Applications
… has become one of the most widely used medical imaging device as a diagnostic tool or an image guider for surgical intervention because of its high portability, non-ionization, non-invasiveness and low cost. Although continuous improvements in commercial equipments have been underway for many …
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