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Author : Luca Frullano
Publisher :
ISBN 13 : 9789090178806
Total Pages : 174 pages
Book Rating : 4.1/5 (788 download)
Download or read book Towards Highly Efficient and Selective Contrast Agents for MRI written by Luca Frullano and published by . This book was released on 2004 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andre S. Merbach
Publisher : John Wiley & Sons
ISBN 13 : 1118503678
Total Pages : 514 pages
Book Rating : 4.1/5 (185 download)
Download or read book The Chemistry of Contrast Agents in Medical Magnetic Resonance Imaging written by Andre S. Merbach and published by John Wiley & Sons. This book was released on 2013-02-19 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Resonance Imaging (MRI) is one of the most important tools in clinical diagnostics and biomedical research. The number of MRI scanners operating around the world is estimated to be approximately 20,000, and the development of contrast agents, currently used in about a third of the 50 million clinical MRI examinations performed every year, has largely contributed to this significant achievement. This completely revised and extended second edition: Includes new chapters on targeted, responsive, PARACEST and nanoparticle MRI contrast agents. Covers the basic chemistries, MR physics and the most important techniques used by chemists in the characterization of MRI agents from every angle from synthesis to safety considerations. Is written for all of those involved in the development and application of contrast agents in MRI. Presented in colour, it provides readers with true representation and easy interpretation of the images. A word from the Authors: Twelve years after the first edition published, we are convinced that the chemistry of MRI agents has a bright future. By assembling all important information on the design principles and functioning of magnetic resonance imaging probes, this book intends to be a useful tool for both experts and newcomers in the field. We hope that it helps inspire further work in order to create more efficient and specific imaging probes that will allow materializing the dream of seeing even deeper and better inside the living organisms. Reviews of the First Edition: "...attempts, for the first time, to review the whole spectrum of involved chemical disciplines in this technique..."—Journal of the American Chemical Society "...well balanced in its scope and attention to detail...a valuable addition to the library of MR scientists..."—NMR in Biomedicine
Author : Loïck Moriggi
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (428 download)
Download or read book Highly Efficient MRI Contrast Agents written by Loïck Moriggi and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Valérie C Pierre
Publisher : Royal Society of Chemistry
ISBN 13 : 1782624473
Total Pages : 612 pages
Book Rating : 4.7/5 (826 download)
Download or read book Contrast Agents for MRI written by Valérie C Pierre and published by Royal Society of Chemistry. This book was released on 2017-11-17 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a practical reference guide for designing and performing experiments, this book focuses on the five most common classes of contrast agents for MRI namely gadolinium complexes, chemical exchange saturation transfer agents, iron oxide nanoparticles, manganese complexes and fluorine contrast agents. It describes how to characterize and evaluate them and for each class, a description of the theory behind their mechanisms is discussed briefly to orient the new reader. Detailed subchapters discuss the different physical chemistry methods used to characterize them in terms of their efficacy, safety and in vivo behavior. Important consideration is also given to the different physical properties that affect the performance of the contrast agents. The editors and contributors are at the forefront of research in the field of MRI contrast agents and this unique, cutting edge book is a timely addition to the literature in this area.
Author : João Bruno Figueiredo Livramento
Publisher :
ISBN 13 :
Total Pages : 217 pages
Book Rating : 4.:/5 (428 download)
Download or read book New Strategies for Highly Efficient MRI Contrast Agents written by João Bruno Figueiredo Livramento and published by . This book was released on 2006 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sophie Laurent
Publisher : Springer
ISBN 13 : 9811025290
Total Pages : 128 pages
Book Rating : 4.8/5 (11 download)
Download or read book MRI Contrast Agents written by Sophie Laurent and published by Springer. This book was released on 2016-11-03 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the multiple aspects of (i) preparation of the magnetic core, (ii) the stabilization with different coatings, (iii) the physico-chemical characterization and (iv) the vectorization to obtain specific nanosystems. Several bio-applications are also presented in this book. In the early days of Magnetic Resonance Imaging (MRI), paramagnetic ions were proposed as contrast agents to enhance the diagnostic quality of MR images. Since then, academic and industrial efforts have been devoted to the development of new and more efficient molecular, supramolecular and nanoparticular systems. Old concepts and theories, like paramagnetic relaxation, were revisited and exploited, leading to new scientific tracks. With their high relaxivity payload, the superparamagnetic nanoparticles are very appealing in the context of molecular imaging but challenges are still numerous: absence of toxicity, specificity, ability to cross the biological barriers, etc.
Author : Dimitrios P Nikolelis
Publisher : Elsevier
ISBN 13 : 0128138858
Total Pages : 474 pages
Book Rating : 4.1/5 (281 download)
Download or read book Nanotechnology and Biosensors written by Dimitrios P Nikolelis and published by Elsevier. This book was released on 2018-06-27 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology and Biosensors shows how nanotechnology is used to create affordable, mass-produced, portable, small sized biosensors to directly monitor environmental pollutants. In addition, it provides information on their integration into components and systems for mass market applications in food analysis, environmental monitoring and health diagnostics. Nanotechnology has led to a dramatic improvement in the performance, sensitivity and selectivity of biosensors. As metal-oxide and carbon nanostructures, gold and magnetite nanoparticles, and the integration of dendrimers in biosensors using nanotechnology have contributed greatly in making biosensors more effective and affordable on a mass-market level, this book presents a timely resource on the topic. Highlights nanotechnology-based approaches to the detection of enzyme inhibitors, direct enzymatic and microbial detection of metabolites, and nutrients using biosensors Includes examples on how nanotechnology has lead to improvements in the construction of portable, selective and sensitive biosensing devices Offers thorough coverage of biomarker/biosensor interaction for the rapid detection of toxicants and pollutants
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Designing Environmentally Responsible and Highly Effective Bioorthogonally Functionalized Chiral MRI Contrast Agents written by and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic resonance imaging (MRI) revolutionized diagnostic imaging and modernized the characterization of numerous diseases. The clinical success of MRI is in large part due to the employment of gadolinium-based contrast agents (GBCAs). Due to sensitivity limitations, GBCAs are indicated at markedly high dosages (~1 g Gd3+ per exam). The routine use of such large quantities of gadolinium poses significant health and environmental risks. There are growing concerns over the effects of dechelation of the metal in vivo and the possible effect of resulting gadolinium deposition. Concurrently, there is a rising awareness of gadolinium anomalies borne by GBCAs which undergo water treatment to be emitted into oceans, surface and potable waters. With increasing reports of gadolinium in the aquatic environment and negative effects on marine life, there are clear potential long-term health and environmental implications if this pollution is not properly addressed. To decrease gadolinium emission into the environment, improving GBCA efficacy to reduce dosage and devising a strategy for selective interception of GBCAs is essential. To address effectiveness, safety and environmental concerns, a series of new gadolinium chelates has been developed. Benzoate-substituted ligands were prepared through new diastereoselective and enantioselective synthetic routes to offer simple solutions toward the advancement of safer and more effective GBCAs. The effectiveness of DOTBA was characterized and found to behave similarly to previous work by our group, demonstrating an agent wherein tumbling, water exchange and hydration state are optimized in concert to achieve an efficacy over two times that of current clinically available GBCAs. Of significant note is the exceptional performance of DOTBA at clinical field strengths (1.5 T -- 3 T) where it is at least twice and up to three times as effective as current clinical agents. The high performance of DOTBA at clinical field strengths offers an agent which could decrease the dosage of Gd3+ by more than one-half, significantly reducing the consumption and emission of Gd3+. To further reduce the amount of Gd3+ pollution, we envisaged collection of the first urine pass post contrast-enhanced examination wherein nearly all of the dose is eliminated.
Author : André E. Merbach
Publisher : Wiley
ISBN 13 : 9780471607786
Total Pages : 0 pages
Book Rating : 4.6/5 (77 download)
Download or read book The Chemistry of Contrast Agents in Medical Magnetic Resonance Imaging written by André E. Merbach and published by Wiley. This book was released on 2001-04-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a huge increase in the use of MRI and contrast agents in medicine in recent years as evidenced by a big increase in the number of hospitals with MRI machines and the ever-increasing number of examinations using contrast agents. Contrast agents have revolutionized the use of Magnetic Resonance Imaging (MRI) in medical diagnostics, allowing doctors to distinguish between normal and abnormal tissues and ultimately improving prognosis for the patient. This monograph covers all aspects of production, use, operating mechanisms and theory of these diagnostic agents, used to produce high contrast images in MRI. It will therefore be unique resource for what is currently a very active domain of research both in universities and in industry. The Chemistry of Contrast Agents in Medical Magnetic Resonance Imaging is a comprehensive treatise: * written by the most active scientists in the field of contrast agents for medical MRI - from both university and industrial backgrounds * covering the topic from every angle from synthesis to safety considerations * invaluable to physicists, chemists, biologists as well as physicians * the first in-depth coverage of this topic
Author : Werner Krause
Publisher : Springer Science & Business Media
ISBN 13 : 3540422471
Total Pages : 251 pages
Book Rating : 4.5/5 (44 download)
Download or read book Contrast Agents I written by Werner Krause and published by Springer Science & Business Media. This book was released on 2002-01-22 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extracellular MRI and X-ray contrast agents are characterized by their phar- cokinetic behaviour.After intravascular injection their plasma-level time curve is characeterized by two phases. The agents are rapidly distributed between plasma and interstitial spaces followed by renal elimination with a terminal half-live of approximatly 1–2 hours. They are excreted via the kidneys in unchanged form by glomerular filtration. Extracellular water-soluble contrast agents to be applied for X-ray imaging were introduced into clinical practice in 1923. Since that time they have proved to be most valuable tools in diagnostics.They contain iodine as the element of choice with a sufficiently high atomic weight difference to organic tissue. As positive contrast agents their attenuation of radiation is higher compared with the attenuation of the surrounding tissue. By this contrast enhancement X-ray diagnostics could be improved dramatically. In 2,4,6-triiodobenzoic acid derivatives iodine is firmly bound. Nowadays diamides of the 2,4,6-triiodo-5-acylamino-isophthalic acid like iopromide (Ultravist, Fig. 1) are used as non-ionic (neutral) X-ray contrast agents in most cases [1].
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 030916463X
Total Pages : 222 pages
Book Rating : 4.3/5 (91 download)
Download or read book Visualizing Chemistry written by National Research Council and published by National Academies Press. This book was released on 2006-06-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and engineers have long relied on the power of imaging techniques to help see objects invisible to the naked eye, and thus, to advance scientific knowledge. These experts are constantly pushing the limits of technology in pursuit of chemical imagingâ€"the ability to visualize molecular structures and chemical composition in time and space as actual events unfoldâ€"from the smallest dimension of a biological system to the widest expanse of a distant galaxy. Chemical imaging has a variety of applications for almost every facet of our daily lives, ranging from medical diagnosis and treatment to the study and design of material properties in new products. In addition to highlighting advances in chemical imaging that could have the greatest impact on critical problems in science and technology, Visualizing Chemistry reviews the current state of chemical imaging technology, identifies promising future developments and their applications, and suggests a research and educational agenda to enable breakthrough improvements.
Author : Sabrina Laus
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (853 download)
Download or read book New Strategies for Highly Efficient Medical MRI Contrast Agents written by Sabrina Laus and published by . This book was released on 2005 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald W. McRobbie
Publisher : Cambridge University Press
ISBN 13 : 1316688259
Total Pages : 405 pages
Book Rating : 4.3/5 (166 download)
Download or read book MRI from Picture to Proton written by Donald W. McRobbie and published by Cambridge University Press. This book was released on 2017-04-13 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: MR is a powerful modality. At its most advanced, it can be used not just to image anatomy and pathology, but to investigate organ function, to probe in vivo chemistry, and even to visualise the brain thinking. However, clinicians, technologists and scientists struggle with the study of the subject. The result is sometimes an obscurity of understanding, or a dilution of scientific truth, resulting in misconceptions. This is why MRI from Picture to Proton has achieved its reputation for practical clarity. MR is introduced as a tool, with coverage starting from the images, equipment and scanning protocols and traced back towards the underlying physics theory. With new content on quantitative MRI, MR safety, multi-band excitation, Dixon imaging, MR elastography and advanced pulse sequences, and with additional supportive materials available on the book's website, this new edition is completely revised and updated to reflect the best use of modern MR technology.
Author : Gang Ho Lee
Publisher : Woodhead Publishing
ISBN 13 : 0081000693
Total Pages : 137 pages
Book Rating : 4.0/5 (81 download)
Download or read book Ultrasmall Lanthanide Oxide Nanoparticles for Biomedical Imaging and Therapy written by Gang Ho Lee and published by Woodhead Publishing. This book was released on 2014-11-22 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most books discuss general and broad topics regarding molecular imagings. However, Ultrasmall Lanthanide Oxide Nanoparticles for Biomedical Imaging and Therapy, will mainly focus on lanthanide oxide nanoparticles for molecular imaging and therapeutics. Multi-modal imaging capabilities will discussed, along with up-converting FI by using lanthanide oxide nanoparticles. The synthesis will cover polyol synthesis of lanthanide oxide nanoparticles, Surface coatings with biocompatible and hydrophilic ligands will be discussed and TEM images and dynamic light scattering (DLS) patterns will be provided. Various techniques which are generally used in analyzing the synthesized surface coated nanoparticles will be explored and this section will also cover FT, IR analysis, XRD analysis, SQUID analysis, cytotoxicity measurements and proton relaxivity measurements. In vivo MR images, CT images, fluorescence images will be provided and Therapeutic application of gadolinium oxide nanoparticles will be discussed. Finally, future perpectives will be discussed. That is, present status and future works needed for clinical applications of lanthanide oxide nanoparticles to molecular imagings will be discussed. Synthesis will be discussed in detail General characterizations of nanoparticles before in vivo applications will be discussed The book will cover all possible applications of lanthanide oxide nanoparticles to molecular imagings such as MRI, CT, FI as well as therapeutics
Author : Nicholas J. Darton
Publisher : Cambridge University Press
ISBN 13 : 1107031095
Total Pages : 317 pages
Book Rating : 4.1/5 (7 download)
Download or read book Magnetic Nanoparticles in Biosensing and Medicine written by Nicholas J. Darton and published by Cambridge University Press. This book was released on 2019-02-14 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing together topics from a wide range of disciplines, and featuring up-to-date examples of clinical usage and research applications, this text provides a comprehensive insight into the fundamentals of magnetic biosensors and the applications of magnetic nanoparticles in medicine.
Author : Robert W. Brown
Publisher : John Wiley & Sons
ISBN 13 : 0471720852
Total Pages : 976 pages
Book Rating : 4.4/5 (717 download)
Download or read book Magnetic Resonance Imaging written by Robert W. Brown and published by John Wiley & Sons. This book was released on 2014-06-23 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: New edition explores contemporary MRI principles and practices Thoroughly revised, updated and expanded, the second edition of Magnetic Resonance Imaging: Physical Principles and Sequence Design remains the preeminent text in its field. Using consistent nomenclature and mathematical notations throughout all the chapters, this new edition carefully explains the physical principles of magnetic resonance imaging design and implementation. In addition, detailed figures and MR images enable readers to better grasp core concepts, methods, and applications. Magnetic Resonance Imaging, Second Edition begins with an introduction to fundamental principles, with coverage of magnetization, relaxation, quantum mechanics, signal detection and acquisition, Fourier imaging, image reconstruction, contrast, signal, and noise. The second part of the text explores MRI methods and applications, including fast imaging, water-fat separation, steady state gradient echo imaging, echo planar imaging, diffusion-weighted imaging, and induced magnetism. Lastly, the text discusses important hardware issues and parallel imaging. Readers familiar with the first edition will find much new material, including: New chapter dedicated to parallel imaging New sections examining off-resonance excitation principles, contrast optimization in fast steady-state incoherent imaging, and efficient lower-dimension analogues for discrete Fourier transforms in echo planar imaging applications Enhanced sections pertaining to Fourier transforms, filter effects on image resolution, and Bloch equation solutions when both rf pulse and slice select gradient fields are present Valuable improvements throughout with respect to equations, formulas, and text New and updated problems to test further the readers' grasp of core concepts Three appendices at the end of the text offer review material for basic electromagnetism and statistics as well as a list of acquisition parameters for the images in the book. Acclaimed by both students and instructors, the second edition of Magnetic Resonance Imaging offers the most comprehensive and approachable introduction to the physics and the applications of magnetic resonance imaging.
Author : Marco Essig
Publisher : Saunders
ISBN 13 : 9781455747009
Total Pages : 0 pages
Book Rating : 4.7/5 (47 download)
Download or read book MR Contrast Agents, an Issue of Magnetic Resonance Imaging Clinics written by Marco Essig and published by Saunders. This book was released on 2012-10-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: MRI contrast agents improve visibility of internal body structures. This issue offers a complete, practically focused review of the use of a variety of contrast agents for MR Imaging. A contrast agent not only must be safe, but also efficacious and cost-effective, and the articles in this issue address all three of these concerns and the uses of contrast agents for a variety of applications.
