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Author: Raquel Cruz Conceição
Publisher: Springer
ISBN: 3319278665
Category : Science
Languages : en
Pages : 154
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Book Description
This book collates past and current research on one of the most promising emerging modalities for breast cancer detection. Readers will discover how, as a standalone technology or in conjunction with another modality, microwave imaging has the potential to provide reliable, safe and comfortable breast exams at low cost. Current breast imaging modalities include X- ray, Ultrasound, Magnetic Resonance Imaging, and Positron Emission Tomography. Each of these methods suffers from limitations, including poor sensitivity or specificity, high cost, patient discomfort, and exposure to potentially harmful ionising radiation. Microwave breast imaging is based on a contrast in the dielectric properties of breast tissue that exists at microwave frequencies. The book begins by considering the anatomy and dielectric properties of the breast, contrasting historical and recent studies. Next, radar-based breast imaging algorithms are discussed, encompassing both early-stage artefact removal, and data independent and adaptive beamforming algorithms. In a similar fashion, microwave tomographic reconstruction algorithms are reviewed in the following chapter, introducing the reader to both the fundamental and more advanced algorithms. Apart from imaging, the book also reviews research efforts in extracting clinically useful information from the Radar Target Signature of breast tumours, which is used to classify tumours as either benign or malignant. Finally, the book concludes by describing the current state of the art in terms of prototype microwave breast imaging systems, with a particular emphasis on those which have progressed to the clinical evaluation stage. This work is motivated by the fact that breast cancer is one of the leading causes of death amongst women in Europe and the US, and the second most common cancer in the world today. Such an important area of research will appeal to many scholars and practitioners.p>
Author: Raquel Cruz Conceição
Publisher: Springer
ISBN: 3319278665
Category : Science
Languages : en
Pages : 154
Get Book Here
Book Description
This book collates past and current research on one of the most promising emerging modalities for breast cancer detection. Readers will discover how, as a standalone technology or in conjunction with another modality, microwave imaging has the potential to provide reliable, safe and comfortable breast exams at low cost. Current breast imaging modalities include X- ray, Ultrasound, Magnetic Resonance Imaging, and Positron Emission Tomography. Each of these methods suffers from limitations, including poor sensitivity or specificity, high cost, patient discomfort, and exposure to potentially harmful ionising radiation. Microwave breast imaging is based on a contrast in the dielectric properties of breast tissue that exists at microwave frequencies. The book begins by considering the anatomy and dielectric properties of the breast, contrasting historical and recent studies. Next, radar-based breast imaging algorithms are discussed, encompassing both early-stage artefact removal, and data independent and adaptive beamforming algorithms. In a similar fashion, microwave tomographic reconstruction algorithms are reviewed in the following chapter, introducing the reader to both the fundamental and more advanced algorithms. Apart from imaging, the book also reviews research efforts in extracting clinically useful information from the Radar Target Signature of breast tumours, which is used to classify tumours as either benign or malignant. Finally, the book concludes by describing the current state of the art in terms of prototype microwave breast imaging systems, with a particular emphasis on those which have progressed to the clinical evaluation stage. This work is motivated by the fact that breast cancer is one of the leading causes of death amongst women in Europe and the US, and the second most common cancer in the world today. Such an important area of research will appeal to many scholars and practitioners.p>
Author: Raquel Cruz Conceição
Publisher: Springer
ISBN: 9783319278650
Category : Science
Languages : en
Pages : 0
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Book Description
This book collates past and current research on one of the most promising emerging modalities for breast cancer detection. Readers will discover how, as a standalone technology or in conjunction with another modality, microwave imaging has the potential to provide reliable, safe and comfortable breast exams at low cost. Current breast imaging modalities include X- ray, Ultrasound, Magnetic Resonance Imaging, and Positron Emission Tomography. Each of these methods suffers from limitations, including poor sensitivity or specificity, high cost, patient discomfort, and exposure to potentially harmful ionising radiation. Microwave breast imaging is based on a contrast in the dielectric properties of breast tissue that exists at microwave frequencies. The book begins by considering the anatomy and dielectric properties of the breast, contrasting historical and recent studies. Next, radar-based breast imaging algorithms are discussed, encompassing both early-stage artefact removal, and data independent and adaptive beamforming algorithms. In a similar fashion, microwave tomographic reconstruction algorithms are reviewed in the following chapter, introducing the reader to both the fundamental and more advanced algorithms. Apart from imaging, the book also reviews research efforts in extracting clinically useful information from the Radar Target Signature of breast tumours, which is used to classify tumours as either benign or malignant. Finally, the book concludes by describing the current state of the art in terms of prototype microwave breast imaging systems, with a particular emphasis on those which have progressed to the clinical evaluation stage. This work is motivated by the fact that breast cancer is one of the leading causes of death amongst women in Europe and the US, and the second most common cancer in the world today. Such an important area of research will appeal to many scholars and practitioners.p>
Author: Hardik N. Patel
Publisher:
ISBN: 9780750325929
Category : Breast
Languages : en
Pages : 0
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Book Description
Author: Elise Carolyn Fear
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Microwave imaging creates images of electrical property distributions in tissue, and has promise for breast tumor detection due to the contrast in electrical properties of normal and malignant breast tissues and the accessibility of the breast for imaging. Confocal microwave imaging (CMI) is a recently introduced technique that avoids limitations associated with classical microwave imaging. CMI detects areas of increased scatter (e.g. tumors) by scanning the synthetic focus of an array of antennas through the breast. As the object is illuminated with ultra-wideband signals, this corresponds to computing time delays to the focal point, resulting in simple image reconstruction algorithms. Additionally, the resolution is determined primarily by the bandwidth of the illuminating signal, allowing for detection of small tumors with appropriate selection of this bandwidth. CMI appears to be a simple and effective technique for breast tumor detection. The development and evaluation of a new approach to confocal microwave imaging is the contribution of this thesis. CMI was only very recently introduced, and many key issues need to be addressed. Most importantly, the CMI system must be designed for physical compatibility with the breast examination. The previously introduced CMI system is planar, and involves placing an array of antennas directly on the naturally flattened breast (of a woman who is lying on her back). In this thesis, a cylindrical CMI configuration is developed. A woman lies on her stomach, the breast extends through a hole in the examination table, and is immersed in a low-loss material. The breast is encircled by an array of antennas, which is placed at a distance from the skin. The cylindrical configuration is likely more appropriate for clinical implementation. The development of cylindrical CMI involves design of appropriate sensing elements and development of image reconstruction algorithms. Construction of appropriate models and simulations of the system are required to test the feasibility of the proposed sensors and algorithms. The finite difference time domain (FDTD) method is well suited to these feasibility studies, as ultra-wideband signals are efficiently simulated in the time domain. In this thesis, four alternative antenna designs are characterized with measures appropriate for ultra-wideband radiation and this specific imaging application. The selected antenna is scanned in a circle around the breast and at a distance from the skin. This is repeated for a number of rows at different heights in order to synthesize a cylindrical or conical array. The returns recorded at each antenna location are processed to reduce clutter, then synthetically focussed at points in the domain of interest. Results indicate that the proposed antenna and algorithms provide the capability to detect and localize (in three dimensions) small spherical tumors at reasonable depths in the breast models. The detection capability achieved with the cylindrical system is comparable to that obtained with the previously introduced planar system.
Author: Xu Li
Publisher:
ISBN:
Category : Breast
Languages : en
Pages : 134
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Book Description
Author: Matteo Pastorino
Publisher: Artech House
ISBN: 1630815268
Category : Technology & Engineering
Languages : en
Pages : 310
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Book Description
Microwave Imaging Methods and Applications provides practitioners and researchers with a complete overview of the latest and most important noninvasive and nondestructive techniques for inspecting structures and bodies by using microwaves. Placing emphasis on applications, the book considers many areas, from medical imaging and security… to industrial engineering and subsurface prospection. For each application, readers are presented with the objectives of the inspection and related challenges. Moreover, this groundbreaking resource details computational methods that can be used to solve inverse problems related to specific applications. Including clear examples or the most significant practical results, this forward-looking reference focuses on systems that have been recently developed. Professionals gain the knowledge needed to compare imaging methods used in different applications and develop new uses of imaging apparatuses and systems.
Author: Evgeny Kirshin
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
"Breast cancer, one of the primary causes of women mortality worldwide, can be effectively treated if detected at its early stage. Microwave Imaging (MWI), an emerging technique, promises to complement the currently used diagnostic modalities. It is safe, non-ionizing and potentially inexpensive, thus possessing key features to make it a good candidate for frequent and mass screenings. This thesis summarizes results of novel research done towards a prototype of a microwave device aimed at screening breast tissues. The author first presents the results of a research to combine Microwave Radar (MWR) breast imaging technique with Microwave-Induced Thermoacoustic (MWIT) imaging to improve tumor detection rate. An optimal rule for fusing information from the two modalities is developed and applied to numerically-simulated microwave and acoustic signals. The results demonstrate advantages of the hybrid method, compared to the MWR and MWIT methods used individually. Next, the thesis describes a research study to address the challenge of data acquisition in MWI. Recording microwave signals with high signal-to-noise ratio is either too expensive or suffers from numerous artifacts and measurement errors. The author presents studies aimed to improve the quality of collected time-domain data by minimizing the effect of phase uncertainties using software compensation.Finally, the thesis focuses on MWI algorithms. A comparative analysis of several existing time-domain MWI algorithms is accomplished to identify their advantages and weaknesses. This analysis yields important lessons on algorithm development in the light of the specific challenges presented by the MWI of the breast tissue. The author presents two improved MWI algorithms that address the identified drawbacks of the existing algorithms. The performance of the new algorithms is evaluated with experimentally-recorded data sets." --
Author: Lawrence E. Larsen
Publisher: IEEE
ISBN: 9780879421960
Category : Medical
Languages : en
Pages : 229
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Book Description
Author: Mahesh K Shetty
Publisher: Springer
ISBN: 1493912674
Category : Medical
Languages : en
Pages : 464
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Book Description
This book presents the current trends and practices in breast imaging. Topics include mammographic interpretation; breast ultrasound; breast MRI; management of the symptomatic breast in young, pregnant and lactating women; breast intervention with imaging pathological correlation; the postoperative breast and current and emerging technologies in breast imaging. It emphasizes the importance of fostering a multidisciplinary approach in the diagnosis and treatment of breast diseases. Featuring more than 800 high-resolution images and showcasing contributions from leading authorities in the screening, diagnosis and management of the breast cancer patient, Breast Cancer Screening and Diagnosis is a valuable resource for radiologists, oncologists and surgeons.
Author: Essex J. Bond
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Book Description
