Download or read book Quantitative Imaging in Small Animals Using SPECT CT written by Andrew Bing Hwang and published by . This book was released on 2006 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Small Animal SPECT Imaging written by Matthew A. Kupinski and published by Springer Science & Business Media. This book was released on 2007-05-27 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small-Animal SPECT Imaging is an edited work derived from the first workshop on Small-Animal SPECT Imaging held January 14-16, 2004 at the University of Arizona, Tucson, AZ, USA. The overall goal of the meeting and therefore this volume is to promote information exchange and collaboration between the research groups developing systems for small-animal applications. Topics include the biomedical significance of small-animal imaging, an overview of detector technologies including scintillation cameras and semi-conductor arrays, imager design and data acquisition systems, animal handling and anesthesia issues, objective assessment of image quality, and system modeling and reconstruction algorithms.
Download or read book Physics of PET and SPECT Imaging written by Magnus Dahlbom and published by CRC Press. This book was released on 2017-02-17 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: PET and SPECT imaging has improved to such a level that they are opening up exciting new horizons in medical diagnosis and treatment. This book provides a complete introduction to fundamentals and the latest progress in the field, including an overview of new scintillator materials and innovations in photodetector development, as well as the latest system designs and image reconstruction algorithms. It begins with basics of PET and SPECT physics, followed by technology advances and computing methods, quantitative techniques, multimodality imaging, instrumentation, pre-clinical and clinical imaging applications.
Download or read book Handbook of Small Animal Imaging written by George C. Kagadis and published by CRC Press. This book was released on 2018-09-03 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of small animal models in basic and preclinical sciences constitutes an integral part of testing new pharmaceutical agents prior to their application in clinical practice. New imaging and therapeutic approaches need to be tested and validated first in animals before application to humans. Handbook of Small Animal Imaging: Preclinical Imaging, Therapy, and Applications collects the latest information about various imaging and therapeutic technologies used in preclinical research into a single source. Useful to established researchers as well as newcomers to the field, this handbook shows readers how to exploit and integrate these imaging and treatment modalities and techniques into their own research. The book first presents introductory material on small animal imaging, therapy, and research ethics. It next covers ionizing radiation and nonionizing radiation methods in small animal imaging, hybrid imaging, and imaging agents. The book then addresses therapeutic research platforms and image quantification, explaining how to ensure accurate measurements of high-quality data. It concludes with an overview of many small animal imaging and therapy applications that demonstrate the strength of the techniques in biomedical fields.
Download or read book Small Animal Imaging written by Fabian Kiessling and published by Springer Science & Business Media. This book was released on 2010-11-29 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small animal imaging has been recognized as an important tool in preclinical research. Nevertheless, the results of non-invasive imaging are often disappointing owing to choice of a suboptimal imaging modality and/or shortcomings in study design, experimental setup, and data evaluation. This textbook is a practical guide to the use of non-invasive imaging in preclinical research. Each of the available imaging modalities is discussed in detail, with the assistance of numerous informative illustrations. In addition, many useful hints are provided on the installation of a small animal unit, study planning, animal handling, and the cost-effective performance of small animal imaging. Cross-calibration methods, data postprocessing, and special imaging applications are also considered in depth. This is the first book to cover all the practical basics in small animal imaging, and it will prove an invaluable aid for researchers, students, and technicians.
Download or read book Measurements and Calculations Towards Quantitative PET and CT Imaging in Small Animals written by Patrick Lok Chow and published by . This book was released on 2006 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Analysis in Nuclear Medicine Imaging written by Habib Zaidi and published by Springer Science & Business Media. This book was released on 2006-07-11 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review of image analysis techniques as they are applied in the field of diagnostic and therapeutic nuclear medicine. Driven in part by the remarkable sophistication of nuclear medicine instrumentation and - crease in computing power and its ready and inexpensive availability, this is a relatively new yet rapidly expanding field. Likewise, although the use of nuclear imaging for diagnosis and therapy has origins dating back almost to the pioneering work of Dr G. de Hevesy, quantitative imaging has only recently emerged as a promising approach for diagnosis and therapy of many diseases. An effort has, therefore, been made to place the reviews provided in this book in a broader context. The effort to do this is reflected by the inclusion of introductory chapters that address basic principles of nuclear medicine instrumentation and dual-modality imaging, followed by overview of issues that are closely related to quantitative nuclear imaging and its potential role in diagnostic and therapeutic applications. A brief overview of each chapter is provided below. Chapter 1 presents a general overview of nuclear medicine imaging physics and instrumentation including planar scintigraphy, single-photon emission computed tomography (SPECT) and positron emission tomography (PET). Nowadays, patients’ diagnosis and therapy is rarely done without the use of imaging technology. As such, imaging considerations are incorporated in almost every chapter of the book. The development of dual-modality - aging systems is an emerging research field, which is addressed in chapter 2.
Download or read book Small Animal Imaging written by Fabian Kiessling and published by Springer. This book was released on 2017-05-22 with total page 871 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook is a practical guide to the use of small animal imaging in preclinical research that will assist in the choice of imaging modality and contrast agent and in study design, experimental setup, and data evaluation. All established imaging modalities are discussed in detail, with the assistance of numerous informative illustrations. While the focus of the new edition remains on practical basics, it has been updated to encompass a variety of emerging imaging modalities, methods, and applications. Additional useful hints are also supplied on the installation of a small animal unit, study planning, animal handling, and cost-effective performance of small animal imaging. Cross-calibration methods and data postprocessing are considered in depth. This new edition of Small Animal Imaging will be an invaluable aid for researchers, students, and technicians involved in research into and applications of small animal imaging.
Download or read book Molecular Imaging of Small Animals written by Habib Zaidi and published by Springer. This book was released on 2014-05-27 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the fundamental concepts of multimodality small-animal molecular imaging technologies and their numerous applications in biomedical research. Driven primarily by the widespread availability of various small-animal models of human diseases replicating accurately biological and biochemical processes in vivo, this is a relatively new yet rapidly expanding field that has excellent potential to become a powerful tool in biomedical research and drug development. In addition to being a powerful clinical tool, a number of imaging modalities including but not limited to CT, MRI, SPECT and PET are also used in small laboratory animal research to visualize and track certain molecular processes associated with diseases such as cancer, heart disease and neurological disorders in living small animal models of disease. In vivo small-animal imaging is playing a pivotal role in the scientific research paradigm enabling to understand human molecular biology and pathophysiology using, for instance, genetically engineered mice with spontaneous diseases that closely mimic human diseases.
Download or read book Characterization of a Small Animal SPECT Platform for Use in Preclinical Translational Research written by Dustin Ryan Osborne and published by . This book was released on 2011 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Imaging Iodine-125 requires an increased focus on developing an understanding of how fundamental processes used by imaging systems work to provide quantitative output for the imaging system. Isotopes like I-125 pose specific imaging problems that are a result of low energy emissions as well as how closely spaced those emissions are in the spectrum. This work seeks to characterize the performance of a small animal SPECT-CT imaging system with respect to imaging I-125 for use in a preclinical translational research environment and to understand how the performance of this system relates to critical applications such as attenuation and scatter correction. The specific aims of this work examined several key areas of system function and performance with respect to I-125 imaging. The first aim examined the geometric SPECT calibration routine used for the Inveon imaging system with a particular focus on determining the accuracy of the calibration as well as the robustness of the algorithm under routine and adverse imaging conditions. The second aim was to characterize detector uniformity issues that may arise by comparing the uniformity performance of the system with both I-125 and Co-57 as well as examining the possibility of altering the acquisition method for normalization scans to increase the uniformity performance. The third aim sought to optimize the energy window used for acquisition of I-125 data and to determine the effects the selection of the window had on valid and scatter events. The fourth aim used the optimized windows, determined by the third aim, to assess the performance of a reconstruction algorithm, currently under development, that corrects for attenuation and scatter effects. The fifth and final aim of this work sought to assess the feasibility acquiring SPECT-CT data simultaneously and to assess the quality of data that could be achieved if simultaneous acquisition of the two imaging modalities was, in fact, possible. This work met these aims by performing an extensive series of studies examining the response of the system to I-125 imaging. These included multiple series of phantom imaging using both manufacturer as well as custom-designed sources for use with measurements involving I-125 and Co-57. Statistics from over 60 datasets with analysis in greater than 480 regions of interest were used for the analysis of attenuation and scatter correction data alone. The final study involving simultaneous SPECT-CT acquisition required modification of the imaging hardware to enable this type of data collection as well as development of a reconstruction algorithm to correctly handle the CT data acquired in a step-and-shoot helical mode. A number of key findings resulted from this work including the validation of the calibration routine of this imaging system, even under non-ideal imaging conditions for both the SPECT and CT modalities. Uniformity performance with I-125 was found to be a challenge with this imaging system but reductions in performance compared to other isotopes were not significant enough to introduce severe artifacts into the image data. Optimization of I-125 parameters resulted in improvements of the processed data indicating that the recommended settings provided by the manufacturer could be altered to provide results that better balance between minimizing scatter effects and maximizing detection of valid events. Assessment of the proposed scatter and attenuation correction algorithm for this system showed marked improvement as compared to data processed without these corrections. The final study of simultaneous SPECT-CT imaging proved this acquisition method to be feasible on a commercial system with minimal The primary conclusions drawn from this study indicate that the system is adequate for imaging with I-125 when care is taken to properly maintain the system as well as keeping sources current and properly centered in the scanner field of view during calibration. The study strongly illustrates the necessity of compensating any data collected using I-125 for attenuation and scatter effects; with some regions showing greater than 25% attenuation and approximately 30% improvement in quantitative values for scatter affected regions with the corrections applied. The study also concludes that simultaneous SPECT-CT is feasible with minor adjustments to a commercial platform.
Download or read book Molecular Anatomic Imaging written by Gustav K. von Schulthess and published by Lippincott Williams & Wilkins. This book was released on 2015-04-20 with total page 1795 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical and clinically oriented, the third edition of Clinical Molecular Anatomic Imaging focuses on PET/CT, SPECT/CT, and PET/MR examinations – precisely the information you need to know. Ideal for clinical hybrid imaging users, it fully integrates all applications, allowing you to easily compare modalities and decide whether to use PET/CT, PET/MR, or SPECT/CT to solve a clinical dilemma. More than 1,600 high-quality illustrations document the use of integrated imaging and provide superb visual references for interpreting integrated imaging studies.
Download or read book Assessment of the Sources of Error Affecting the Quantitative Accuracy of SPECT Imaging in Small Animals written by and published by . This book was released on 2008 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small animal SPECT imaging systems have multiple potential applications in biomedical research. Whereas SPECT data are commonly interpreted qualitatively in a clinical setting, the ability to accurately quantify measurements will increase the utility of the SPECT data for laboratory measurements involving small animals. In this work, we assess the effect of photon attenuation, scatter and partial volume errors on the quantitative accuracy of small animal SPECT measurements, first with Monte Carlo simulation and then confirmed with experimental measurements. The simulations modeled the imaging geometry of a commercially available small animal SPECT system. We simulated the imaging of a radioactive source within a cylinder of water, and reconstructed the projection data using iterative reconstruction algorithms. The size of the source and the size of the surrounding cylinder were varied to evaluate the effects of photon attenuation and scatter on quantitative accuracy. We found that photon attenuation can reduce the measured concentration of radioactivity in a volume of interest in the center of a rat-sized cylinder of water by up to 50percent when imaging with iodine-125, and up to 25percent when imaging with technetium-99m. When imaging with iodine-125, the scatter-to-primary ratio can reach up to approximately 30percent, and can cause overestimation of the radioactivity concentration when reconstructing data with attenuation correction. We varied the size of the source to evaluate partial volume errors, which we found to be a strong function of the size of the volume of interest and the spatial resolution. These errors can result in large (>50percent) changes in the measured amount of radioactivity. The simulation results were compared with and found to agree with experimental measurements. The inclusion of attenuation correction in the reconstruction algorithm improved quantitative accuracy. We also found that an improvement of the spatial resolution through the use of resolution recovery techniques (i.e. modeling the finite collimator spatial resolution in iterative reconstruction algorithms) can significantly reduce the partial volume errors.
Download or read book Development of a Combined MicroSPECT CT System for Small Animal Imaging written by Mingshan Sun and published by . This book was released on 2006 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid SPECT CT Imaging in Clinical Practice written by Ora Israel and published by CRC Press. This book was released on 2006 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring a technology that is significantly impacting the noninvasive evaluation of the physiology and anatomy of tumors, as well as the diagnosis of infectious processes and cardiac diseases, this source presents recent advances and clinical applications of sequential, single session single-photon emission computed tomography and computed tomography imaging. This source is written by pioneers in hybrid imaging and offers authoritative sections on state-of-the-art breakthroughs in sentinel lymph node identification, cardiac imaging, and the study and treatment of a variety of disorders including lymphoma, thyroid and parathyroid tumors, neuroendocrine tumors, prostatic cancer, and bone metastases.
Download or read book Computational Framework for Small Animal SPECT Imaging written by Sang Hyeb Lee and published by . This book was released on 2015 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small animal Single Photon Emission Computed Tomography (SPECT) has been an invaluable asset in biomedical science since this non-invasive imaging technique allows the longitudinal studies of animal models of human diseases. However, the image degradation caused by non-stationary collimator-detector response and single photon emitting nature of SPECT makes it difficult to provide a quantitative measure of 3D radio-pharmaceutical distribution inside the patient. Moreover, this problem exacerbates when an intra-peritoneal X-ray contrast agent is injected into a mouse for low-energy radiotracers. In this dissertation, we design and develop a complete computational framework for the entire SPECT scan procedure from the radio-pharmaceutical injection, image acquisition, attenuation and scatter correction, and to the image reconstruction. Using this framework, we solve several challenging problems in small animal SPECT imaging. In particular, we perform an in-depth analysis of photon attenuation and scatter in small SPECT imaging and evaluate the performance of correction methods under various imaging circumstances in terms of image quality and computational complexity. Furthermore, we propose various techniques to accelerate correction methods using computational accelerators. This research also implements and validates a solution for solving the cross-talk contamination problem in I-123 and I-125 by using the ratio of detected low and high energy I-123 activity to separate the mixed low energy I-123 and I-125 activities using our simulation framework. Iterative reconstruction methods produce an accurate image using an accurate system matrix model of the image acquisition process at the expense of computational time. This research examines and proposes various techniques for accelerating the analytic system matrix generation for 3D SPECT.
Download or read book Handbook of In Vivo Chemistry in Mice written by Katsunori Tanaka and published by John Wiley & Sons. This book was released on 2020-04-27 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides timely, comprehensive coverage of in vivo chemical reactions within live animals This handbook summarizes the interdisciplinary expertise of both chemists and biologists performing in vivo chemical reactions within live animals. By comparing and contrasting currently available chemical and biological techniques, it serves not just as a collection of the pioneering work done in animal-based studies, but also as a technical guide to help readers decide which tools are suitable and best for their experimental needs. The Handbook of In Vivo Chemistry in Mice: From Lab to Living System introduces readers to general information about live animal experiments and detection methods commonly used for these animal models. It focuses on chemistry-based techniques to develop selective in vivo targeting methodologies, as well as strategies for in vivo chemistry and drug release. Topics include: currently available mouse models; biocompatible fluorophores; radionuclides for radiodiagnosis/radiotherapy; live animal imaging techniques such as positron emission tomography (PET) imaging; magnetic resonance imaging (MRI); ultrasound imaging; hybrid imaging; biocompatible chemical reactions; ligand-directed nucleophilic substitution chemistry; biorthogonal prodrug release strategies; and various selective targeting strategies for live animals. -Completely covers current techniques of in vivo chemistry performed in live animals -Describes general information about commonly used live animal experiments and detection methods -Focuses on chemistry-based techniques to develop selective in vivo targeting methodologies, as well as strategies for in vivo chemistry and drug release -Places emphasis on material properties required for the development of appropriate compounds to be used for imaging and therapeutic purposes in preclinical applications Handbook of In Vivo Chemistry in Mice: From Lab to Living System will be of great interest to pharmaceutical chemists, life scientists, and organic chemists. It will also appeal to those working in the pharmaceutical and biotechnology industries.
Download or read book Emission Tomography written by Miles N. Wernick and published by Elsevier. This book was released on 2004-12-07 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: PET and SPECT are two of today’s most important medical-imaging methods, providing images that reveal subtle information about physiological processes in humans and animals. Emission Tomography: The Fundamentals of PET and SPECT explains the physics and engineering principles of these important functional-imaging methods. The technology of emission tomography is covered in detail, including historical origins, scientific and mathematical foundations, imaging systems and their components, image reconstruction and analysis, simulation techniques, and clinical and laboratory applications. The book describes the state of the art of emission tomography, including all facets of conventional SPECT and PET, as well as contemporary topics such as iterative image reconstruction, small-animal imaging, and PET/CT systems. This book is intended as a textbook and reference resource for graduate students, researchers, medical physicists, biomedical engineers, and professional engineers and physicists in the medical-imaging industry. Thorough tutorials of fundamental and advanced topics are presented by dozens of the leading researchers in PET and SPECT. SPECT has long been a mainstay of clinical imaging, and PET is now one of the world’s fastest growing medical imaging techniques, owing to its dramatic contributions to cancer imaging and other applications. Emission Tomography: The Fundamentals of PET and SPECT is an essential resource for understanding the technology of SPECT and PET, the most widely used forms of molecular imaging. *Contains thorough tutorial treatments, coupled with coverage of advanced topics *Three of the four holders of the prestigious Institute of Electrical and Electronics Engineers Medical Imaging Scientist Award are chapter contributors *Include color artwork
