Radiological Functional Analysis Of The Vascular System
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Radiological Functional Analysis Of The Vascular System
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Author : Friedrich H.W. Heuck
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Radiological Functional Analysis Of The Vascular System written by Friedrich H.W. Heuck and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Mathematics categories.
Scientists and engineers have been involved in medical radiology from the very beginning. At times advances in this field occur at a tremen dously fast pace. Developments in radiological diagnostics have - technologically and medically speaking - focused on morphology. At present, computer-aided tomography (CAT) is at a high point in deve1opment, medical application, and validation. The preconditions for this success were rapid advances in electronics and computer technology - in hardware and in software - and an unexpected cost reduction in these fields; the co operation of various scientific disci plines was also essential. Functional radiological diagnosis has been neglected in part, owing to the emphasis on morphology, but alone the synthesis of morphology and function prornises further advances. Apart from the limited capabilities ofuItrasonic techniques there is no way other than using X-rays to carry out functional studies of organs and their systems through an intact body surface. It is frequently necessary to do further processing and evaluation of image series which have been recorded from the morphological viewpoint. This further picture processing may be of selected points (pixels) in the image, of certain regions of interest (ROI), or of the overall picture. For the measure ment of rapid phenomena, such as the blood flow in the main arteries, high image-frame rates are required, and at the moment these can only be achieved with cinemascopic techniques. For slower processes, other techniques such as videography have some advan tages.
Frontiers In European Radiology
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Author :
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Frontiers In European Radiology written by and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
The quantitative analysis of blood flow within central and peripheral blood vessels has attracted more and more interest, for with the rapid developments in vascular surgery and the introduction of percutaneous transluminal angioplasty, it is becom ing increasingly important to be able to measure regional blood flow in man. In clinical radiology, angiography has been used predominantly from the point of view of its morphological applications. However, theoretically angiography may also be regarded as a specific application of indicator-dilution measurements of blood flow. The indicator is contrast medium (CM), the changing concentration of which is re corded by cinematography or video-electronic systems at sites downstream from the point of injection. The curves of density thus obtained correspond to indicator-di lution curves. The blood flow can be calculated from the concentration-time curves ofCM in much the same way as it is estimated from other indicator-dilution curves. In our early work with clinical application of videodensitometric measurement of blood flow in the iliac artery, we found that this method did not offer as high a degree of accuracy as one would have expected from investigations by other authors. We saw that we needed to examine the following problems: 1. We had to investigate whether our conventional X-ray equipment and video densitometer could be viewed as a linear measuring system. To what extent do unavoidable nonlinear changes in the measuring signals influence the blood flow values? 2.
Cardiovascular And Neurovascular Imaging
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Author : Carlo Cavedon
language : en
Publisher: CRC Press
Release Date : 2015-08-22
Cardiovascular And Neurovascular Imaging written by Carlo Cavedon and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-22 with Medical categories.
Cardiovascular and Neurovascular Imaging: Physics and Technology explains the underlying physical and technical principles behind a range of cardiovascular and neurovascular imaging modalities, including radiography, nuclear medicine, ultrasound, and magnetic resonance imaging (MRI). Examining this interdisciplinary branch of medical imaging from a
Current Catalog
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Author : National Library of Medicine (U.S.)
language : en
Publisher:
Release Date : 1983
Current Catalog written by National Library of Medicine (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Medicine categories.
First multi-year cumulation covers six years: 1965-70.
Cardiovascular Nuclear Medicine And Mri
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Author : Johan H. C. Reiber
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cardiovascular Nuclear Medicine And Mri written by Johan H. C. Reiber and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
In recent years there have been major advances in the fields of cardiovascular nuclear medicine and cardiac magnetic resonance imaging. In nuclear cardiology more adequate tomographic systems have been designed for routine cardiac use, as well as new or improved quantitative analytic software packages both for planar and tomographic studies implemented on modern state-of-the-art workstations. In addition, artificial intelligence techniques are being applied to these images in attempts to interpret the nuclear studies in a more objective and reproducible manner. Various new radiotracers have been developed, such as antimyosin, labeled isonitriles, metabolic compounds, etc. Furthermore, alternative stress testing with dipyridamole and dobutamine has received much attention in clinical cardiac practice. Magnetic resonance imaging is a relative newcomer in cardiology and has already shown its merits, not only for anatomical information but increasingly for the functional aspects of cardiac performance. This book covers almost every aspect of quantitative cardiovascular nuclear medicine and magnetic resonance imaging. It will assist the nuclear medicine physician, the radiologist, the physicist/image processing specialist and the clinical cardiologist in understanding the nuclear medicine techniques used in cardiovascular medicine, and in increasing our knowledge of cardiac magnetic resonance imaging.
National Library Of Medicine Current Catalog
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Author : National Library of Medicine (U.S.)
language : en
Publisher:
Release Date : 1983
National Library Of Medicine Current Catalog written by National Library of Medicine (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Medicine categories.
State Of The Art In Quantitative Coronary Arteriography
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Author : Johan H. C. Reiber
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
State Of The Art In Quantitative Coronary Arteriography written by Johan H. C. Reiber and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
Over the past twenty years, technical advances in coronary arteriography have contributed to our understanding of the pathophysiologic aspects and natural history of coronary artery disease. Probably more than 700. 000 coronary arterio grams are performed annually throughout the world. Usually, these arteriograms are interpreted visually to determine the morphologic extent and severity of coronary artery disease. These subjective determinations, which are hampered . by relatively large intra- and interobserver variations, are used as a basis for critically important therapeutic decisions: Which arteries are to be revascular ized, which lesions are suitable for coronary bypass surgery or for percutaneous coronary angioplasty? To improve on this clinical decision making, on the treat ment and follow-up of such patients, new, objective and reproducible techniques for the assessment of the extent and severity of coronary artery disease, both in terms of anatomy and functional significance of the lesions, must be made widely available. With such new procedures and technologies the efficacy of new thera peutic procedures, the effects of vasodilating and constricting drugs, and the results of long-term studies on the regression and progression of atherosclerotic plaque can be determined in an objective and cost-effective manner.
Comprehensive Textbook Of Clinical Radiology Chest And Cardiovascular System Volume 3 Ebook
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Author : C Amarnath
language : en
Publisher: Elsevier Health Sciences
Release Date : 2023-04-24
Comprehensive Textbook Of Clinical Radiology Chest And Cardiovascular System Volume 3 Ebook written by C Amarnath and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-24 with Medical categories.
- Divides the contents of each volume into sections - to mirror the way you practice. - Includes topics like Paediatrics Oncology and Interventional Radiology in each section for a holistic approach. - Provides content written by more than 500+ prominent authors across the globe and further edited by more than 50+ editors of global repute. - Organizes the material in structured, consistent chapter layouts for efficient and effective review. - Contains heavily illustrated radiographical images along with additional CT, HRCT and MR correlative images. - Discusses all possible pathologies in detail. - All the methods of imaging from colour Doppler to angiography are described comprehensively. - Covers detailed discussion of peripheral vascular interventions with latest advances and clinical perspective of vascular interventions. - Comprises additional online chapters in each volume with online references and other ancillary materials which would make learning and understanding much easier.
Imaging Of The Cardiovascular System Thorax And Abdomen
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Author : Luca Saba
language : en
Publisher: CRC Press
Release Date : 2017-12-19
Imaging Of The Cardiovascular System Thorax And Abdomen written by Luca Saba and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-19 with Medical categories.
Magnetic resonance imaging (MRI) is a technique used in biomedical imaging and radiology to visualize internal structures of the body. Because MRI provides excellent contrast between different soft tissues, the technique is especially useful for diagnostic imaging of the brain, muscles, and heart. In the past 20 years, MRI technology has improved significantly with the introduction of systems up to 7 Tesla (7 T) and with the development of numerous post-processing algorithms such as diffusion tensor imaging (DTI), functional MRI (fMRI), and spectroscopic imaging. From these developments, the diagnostic potentialities of MRI have improved impressively with an exceptional spatial resolution and the possibility of analyzing the morphology and function of several kinds of pathology. Given these exciting developments, the Magnetic Resonance Imaging Handbook: Imaging of the Cardiovascular System, Thorax, and Abdomen is a timely addition to the growing body of literature in the field. Offering comprehensive coverage of cutting-edge imaging modalities, this book: Discusses MRI of the heart, blood vessels, lungs, breasts, diaphragm, liver, gallbladder, spleen, pancreas, adrenal glands, and gastrointestinal tract Explains how MRI can be used in vascular, posttraumatic, postsurgical, and computer-aided diagnostic (CAD) applications Highlights each organ’s anatomy and pathological processes with high-quality images Examines the protocols and potentialities of advanced MRI scanners such as 7 T systems Includes extensive references at the end of each chapter to enhance further study Thus, the Magnetic Resonance Imaging Handbook: Imaging of the Cardiovascular System, Thorax, and Abdomen provides radiologists and imaging specialists with a valuable, state-of-the-art reference on MRI.
Research Grants Index
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Author : National Institutes of Health (U.S.). Division of Research Grants
language : en
Publisher:
Release Date : 1973
Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Medicine categories.