Download or read book Optimization of Breast Imaging Procedure with Dedicated Compact Gamma Cameras written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are presented on studies conducted with various prototypes of a dedicated small field-of-view (SFOV) gamma camera for use in radiopharmaceutical studies of the breast. Since the experience in the clinical use of such instruments is limited, these experiments were conducted to test various clinical imaging implementations. Both planar and tomographic techniques were utilized to image various compressed and noncompressed breast phantoms. Lesion contrast was used to quantify the lesion visibility of each case. The results of this study indicate that lesion contrast is optimized with planar imaging of the compressed breast and that contrast is also dependent on lesion-to-detector distance. Based on these observations, planar imaging conducted with a system comprised of two opposed detectors providing compression to the breast would be optimal. The opposed views would ensure the minimization of lesion-to-detector distance, especially for lesions whose location is not known a-priori.
Download or read book Optimization of Molecular Breast Imaging with Dedicated Gamma Camera Systems written by Carrie Beth Hruska and published by . This book was released on 2007 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization of Dedicated Scintimammography Procedure Using Detector Prototypes and Compressible Phantoms written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are presented on the optimization of the design and use of dedicated compact scintimammography gamma cameras. Prototype imagers with a field-of-view (FOV) of 5 cm x 5 cm, 10 cm x 10 cm and 15 cm x 20 cm were used in either a dual modality mode as an adjunct technique to digital x-ray mammography imagers or as stand-alone instruments such as dedicated breast SPECT and planar imagers. Experimental data was acquired to select the best imaging modality (SPECT or planar) to detect small lesions using Tc{sup 99m} radio-labeled pharmaceuticals. In addition, studies were preformed to optimize the imaging geometry. Results suggest that the preferred imaging geometry is planar imaging with two opposing detector heads while the breast is under compression, however further study of the dedicated breast SPECT is warranted.
Download or read book A Compact Discrete CsI Tl Scintillator Si Photodiode Gamma Camera for Breast Cancer Imaging written by and published by . This book was released on 2000 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent clinical evaluations of scintimammography (radionuclide breast imaging) are promising and suggest that this modality may prove a valuable complement to X-ray mammography and traditional breast cancer detection and diagnosis techniques. Scintimammography, however, typically has difficulty revealing tumors that are less than 1 cm in diameter, are located in the medial part of the breast, or are located in the axillary nodes. These shortcomings may in part be due to the use of large, conventional Anger cameras not optimized for breast imaging. In this thesis I present compact single photon camera technology designed specifically for scintimammography which strives to alleviate some of these limitations by allowing better and closer access to sites of possible breast tumors. Specific applications are outlined. The design is modular, thus a camera of the desired size and geometry can be constructed from an array (or arrays) of individual modules and a parallel hole lead collimator for directional information. Each module consists of: (1) an array of 64 discrete, optically-isolated CsI(Tl) scintillator crystals 3 x 3 x 5 mm3 in size, (2) an array of 64 low-noise Si PIN photodiodes matched 1-to-1 to the scintillator crystals, (3) an application-specific integrated circuit (ASIC) that amplifies the 64 photodiode signals and selects the signal with the largest amplitude, and (4) connectors and hardware for interfacing the module with a motherboard, thereby allowing straightforward computer control of all individual modules within a camera.
Download or read book Nuclear Medicine Textbook written by Duccio Volterrani and published by Springer. This book was released on 2019-08-10 with total page 1331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the traditional concept of nuclear medicine, this textbook presents cutting-edge concepts of hybrid imaging and discusses the close interactions between nuclear medicine and other clinical specialties, in order to achieve the best possible outcomes for patients. Today the diagnostic applications of nuclear medicine are no longer stand-alone procedures, separate from other diagnostic imaging modalities. This is especially true for hybrid imaging guided interventional radiology or surgical procedures. Accordingly, today’s nuclear medicine specialists are actually specialists in multimodality imaging (in addition to their expertise in the diagnostic and therapeutic uses of radionuclides). This new role requires a new core curriculum for training nuclear medicine specialists. This textbook is designed to meet these new educational needs, and to prepare nuclear physicians and technologists for careers in this exciting specialty.
Download or read book Gamma Cameras for Interventional and Intraoperative Imaging written by Alan C. Perkins and published by CRC Press. This book was released on 2016-11-03 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gamma cameras are traditionally large devices that are situated in nuclear medicine departments, but recent advances in detector design have enabled the production of compact gamma cameras that allow nuclear imaging at the patient bedside and in the operating theatre. Gamma Cameras for Interventional and Intraoperative Imaging is the first book to cover this new area of imaging, and provides a unique insight into the experimental and clinical use of small field of view gamma cameras in hospitals. This book explores advances in the design and operation of compact gamma cameras and conducts a thorough review of current SFOV systems, before exploring the clinical applications of the technology. It is an essential reference for surgeons, operating theatre staff, clinical scientists (medical physicists), technologists, nuclear physicians and radiologists whose patients could benefit from this technology.
Download or read book Compact Gamma Camera System for Breast Cancer Imaging written by and published by . This book was released on 2001 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this project we have developed a compact solid-state gamma camera specifically designed to image metabolically active tumors in the breast and axillary nodes with the highest possible detection efficiency and spatial resolution. We have assembled final versions of all major components of the proposed compact solid- state gamma camera: collimators, CsI(Tl) scintillator arrays, special low-noise silicon photodiode arrays, and custom integrated circuit readout chips. A prototype 64-pixel detector module was successfully assembled and images of point sources were acquired with this 64 pixel camera. Based on results to date, it appears that our compact camera design will yield very similar performance to traditional SPECT cameras. However, for the application of breast and axillary node imaging, our compact design will have the advantages of: (1) more potential imaging angles, (2) shorter imaging distances and hence higher image quality, and (3) lower cost, making the camera more readily available. Once completed, the new camera may help make scintimammography widely available as a valuable complement to traditional breast cancer screening and diagnostic techniques.
Download or read book Dual Modality Imaging System for Breast Cancer Research written by and published by . This book was released on 2004 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 25-40% of the general female population with radiodense breast parenchyma, clinically occult lesions may be invisible in the screen-film mammogram. Even if suspicious masses are detected, determination of the benign or malignant nature of a mass is often impossible from the x-ray image. There is thus a need for diagnostic procedures that can noninvasively help characterize suspicious breast lesions. Scintimammography is an imaging technique that shows promise as an adjunct diagnostic tool in problem solving mammography, for monitoring recurrence after surgery, and in the assessment of multidrug-resistance. However, because clinical Anger cameras have only moderate spatial resolution and are difficult to position close to the breast, small lesions are difficult to detect. In addition, no direct means exists of correlating mammographic and scintigraphic information because of the significantly different shape of the breast in mammography (compressed) and scintimammography (prone, pendulant). We are developing an imaging system that overcomes these problems by combining digital x-ray mammography and gamma emission scintigraphy in a single, integrated system. The system is mounted on a standard upright mammography unit, and can easily be placed in a typical mammography room, providing accessibility even for small breast imaging clinics not associated with major medical centers.
Download or read book Abeloff s Clinical Oncology E Book written by John E. Niederhuber and published by Elsevier Health Sciences. This book was released on 2019-01-08 with total page 2648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easily accessible and clinically focused, Abeloff's Clinical Oncology, 6th Edition, covers recent advances in our understanding of the pathophysiology of cancer, cellular and molecular causes of cancer initiation and progression, new and emerging therapies, current trials, and much more. Masterfully authored by an international team of leading cancer experts, it offers clear, practical coverage of everything from basic science to multidisciplinary collaboration on diagnosis, staging, treatment and follow up. - Includes new chapters on Cancer Metabolism and Clinical Trial Designs in Oncology and a standalone chapter on lifestyles and cancer prevention. - Features extensive updates including the latest clinical practice guidelines, decision-making algorithms, and clinical trial implications, as well as new content on precision medicine, genetics, and PET/CT imaging. - Includes revised diagnostic and treatment protocols for medical management, surgical considerations, and radiation oncology therapies, stressing a multispecialty, integrated approach to care. - Helps you find information quickly with updated indexing related to management recommendations, focused fact summaries, updated key points at the beginning of each chapter ideal for quick reference and board review, and algorithms for patient evaluation, diagnosis, and treatment options. - Offers more patient care coverage in disease chapters, plus new information on cancer as a chronic illness and cancer survivorship. - Discusses today's key topics such as immuno-oncology, functional imaging, precision medicine, the application of genetics in pathologic diagnosis and sub-categorization of tumors as well as the association of chronic infectious diseases such as HIV and cancer. - Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.
Download or read book Mammography for Radiologic Technologists written by Gini Wentz and published by McGraw-Hill Professional Publishing. This book was released on 1996 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts in the field and providing the latest in quality assurance and clinical the second edition helps the reader develop the skills needed to perform quality mammography--the critical first step to successful diagnosis, treatment, and prevention of breast cancer. Topics covered include basic physics, the history of mammography, techniques of film-screen mammography, quality assurance, position, basic troubleshooting, and much more. A MUST for anyone preparing for the mammography registry exam.
Download or read book Optical Modeling Design Optimization and Performance Analysis of a Gamma Camera for Detection of Breast Cancer PHD written by John David Sain and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagnostic Breast Imaging written by Sylvia H. Heywang-Köbrunner and published by Thieme. This book was released on 2014-01-15 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encompassing the entire spectrum of breast imaging and diagnostics, this acclaimed text provides a systematic and pragmatic guide for all clinicians involved in diagnosing breast disease. The new third edition has been fully updated to include advances in mammography, ultrasound, breast MRI, percutaneous interventions, and emerging technologies, with pros and cons and evidence-based approaches throughout. Special features of the third edition: Coverage of the field, with comprehensive sections on examination procedures and technical requirements; histologic, clinical, and radiologic appearance of a wide range of breast pathologies; results of international screening studies; and much more Nearly 1,200 clear radiographic images showing normal findings, benign and malignant disorders, and post-traumatic, post-surgical, and post-therapeutic changes to the breast Innovations in digital mammography, tomosynthesis, and computer assisted detection (CAD); new chapters on imaging of implants, lesions of uncertain malignant potential, developing technologies; and more A systematic, highly reproducible methodology for detection, diagnosis, and assessment of findings Easy-to-follow flowcharts for the diagnostic work-up of both typical and atypical cases Written by world-renowned authorities with decades of clinical experience, this book provides a brilliant orientation to the multimodality diagnostic approach and therapeutic significance of breast imaging findings. It is an essential reference and board review for radiologists, residents and fellows, gynecologists, oncologists, surgeons, technologists, and any other interdisciplinary specialist working to improve outcomes in breast disease.
Download or read book 2000 IEEE Nuclear Science Symposium written by and published by . This book was released on 2001 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mammography and Beyond written by National Research Council and published by National Academies Press. This book was released on 2001-07-23 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each year more than 180,000 new cases of breast cancer are diagnosed in women in the U.S. If cancer is detected when small and local, treatment options are less dangerous, intrusive, and costly-and more likely to lead to a cure. Yet those simple facts belie the complexity of developing and disseminating acceptable techniques for breast cancer diagnosis. Even the most exciting new technologies remain clouded with uncertainty. Mammography and Beyond provides a comprehensive and up-to-date perspective on the state of breast cancer screening and diagnosis and recommends steps for developing the most reliable breast cancer detection methods possible. This book reviews the dramatic expansion of breast cancer awareness and screening, examining the capabilities and limitations of current and emerging technologies for breast cancer detection and their effectiveness at actually reducing deaths. The committee discusses issues including national policy toward breast cancer detection, roles of public and private agencies, problems in determining the success of a technique, availability of detection methods to specific populations of women, women's experience during the detection process, cost-benefit analyses, and more. Examining current practices and specifying research and other needs, Mammography and Beyond will be an indispensable resource to policy makers, public health officials, medical practitioners, researchers, women's health advocates, and concerned women and their families.
Download or read book Radioguided Surgery written by Giuliano Mariani and published by Springer Science & Business Media. This book was released on 2010-05-10 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multidisciplinary textbook is designed to be the standard on the subject and is geared for use by physicians who are involved in the care and/or diagnosis of cancer patients. Comprehensive coverage is provided on all aspects of radioguided surgery. Practical information is readily accessible and throughout there is an emphasis on improved decision making. Tables present the indications, performance, and interpretation of procedures at a glance. A wealth of illustrations, including a full-color insert, enhances the application of new concepts.
Download or read book Optimizing Near infrared Spectral Tomography for Diagnostic Imaging and Monitoring of Breast Cancer Treatment written by Yan Zhao and published by . This book was released on 2017 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Near-infrared spectral tomography (NIRST) has been intensively investigated for clinical application in breast imaging, by providing functional information about physiologically related biomarkers such as oxy- and deoxy-hemoglobin, water, lipid and scatter component. In this thesis, a series of studies on system development and reconstruction algorithm were completed to improve the imaging quality of MR-guide NIRST and to predicate breast cancer response to neo-adjuvant chemotherapy. To optimize image recovery which maximizes difference between malignant and benign lesions, non-linear iterative reconstructions of MR-Guided NISRT images were recovered using an L-curve based algorithm, and applied to clinical trial data. The statistical analyses have shown that the new approach dramatically improved the statistical significance for differentiating malignant from benign lesions. While MRI guide NIRST has been utilized to detect breast cancer, NIRST is also used to predicate and monitor breast tumor responses in patients with locally advanced breast cancer undergoing neoadjuvant treatment. Based on an existing hybrid NIRST system developed at Dartmouth, a compact and portable NIRST system has been developed for imaging patients in the infusion unit while patients are awaiting or undergoing infusion. This system can acquire frequency-domain and continuous-wave data simultaneously at 12 wavelengths in the wavelength range of 660nm to 1064nm. Novel soft gel based homogenous and heterogamous tissue-mimicking phantoms with sphere-shape inclusions have been developed, to mimic human breasts. The phantom experiments indicate that the reconstructed optical images highly depend on the position of imaging plane, especially in the case of small inclusions. Tomographic images of breast collagen content have been recovered for the first time, and image reconstruction approaches with and without collagen content included have been validated in simulation studies, which indicate that including collagen content into the reconstruction procedure can significantly reduce the overestimation in total hemoglobin, water and lipid, and underestimates in oxygen saturation. A group of 10 normal subjects were imaged, and significantly higher (p
Download or read book Breast Imaging Companion written by Gilda Cardenosa and published by LWW. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pragmatic, common sense approach to the detection, evaluation and management of breast diseases and related imaging findings The fourth edition of this best selling "how-to" book includes major revisions, including the expansion of the screening mammography and breast MRI chapters, as well as the addition of digital breast tomosynthesis studies. Rather than having selected cropped images, the print and online versions of this book provide the reader with thousands of high quality images and complete imaging evaluations, from the screening images to the diagnostic mammogram, and--when appropriate--images from ultrasound, MRI, imaging guided biopsy, and preoperative wire localizations. Bulleted "key-facts" describe clinical, imaging and histological findings for a spectrum of breast diseases. With this book, breast-imaging radiologists are strongly encouraged to provide clinical, imaging and pathology concordance for optimal patient care, as well as direct and clinically relevant communication with providers and patients. Key Features: Picture yourself in front of a screening mammogram or breast MRI ... what now? How do you know if the study is interpretable? What are you looking for? Where do you look? If you detect something, what is the next appropriate step and how do you describe the finding? You will have access to hundreds of complete patient evaluations with thousands of images that include screening and diagnostic mammography, digital breast tomosynthesis, ultrasound, magnetic resonance studies and imaging guided breast related procedures with relevant pathology results and, when appropriate, the pathological stage. Develop appropriate differential considerations for the spectrum of breast imaging findings and appropriate management strategies. Review the indications for imaging guided procedures with step-by-step descriptions for each procedure illustrated with diagrams and images. Establish an optimal QA/QC program for your mammography practice, based on the concepts published by the ACR, regarding testing across digital platforms in the online version of the book. Test your knowledge and skills with a self-assessment chapter online. Your book purchase includes a complimentary download of the enhanced eBook for iOS, Android, PC & Mac.Take advantage of these practical features that will improve your eBook experience: The ability to download the eBook on multiple devices at one time -- providing a seamless reading experience online or offline Powerful search tools and smart navigation cross-links that allow you to search within this book, or across your entire library of VitalSource eBooks Multiple viewing options that enable you to scale images and text to any size without losing page clarity as well as responsive design The ability to highlight text and add notes with one click
