Download or read book In vivo High Resolution Magnetic Resonance Imaging of the Skin and the Effect of Hydration written by Fakhereh Mirrashed and published by . This book was released on 1998 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High resolution Magnetic Resonance Imaging of the Skin and the Effect of Hydration written by Fakhereh Mirrashed and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Vivo High resolution Magnetic Resonance Imaging written by Joelle Barral and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic resonance imaging is a powerful, non-invasive modality that provides excellent soft-tissue contrast, but it suffers from a relatively low signal-to-noise ratio and is inherently prone to artifacts. Although technological progress over the last few decades has dramatically enhanced the resolution and quality of magnetic resonance images, specific clinical challenges highlight the need for further improvements. First, patients with peripheral arterial disease are at high risk for developing skin ulcers, which are often detected at a late stage, when amputation is the only treatment option. High-resolution imaging might detect changes in skin early enough to enable alternative treatments. Second, higher-resolution larynx imaging is highly desirable for the exact assessment of cartilage invasion, which is a critical step in cancer staging and in the selection of the appropriate treatment. High-resolution skin and larynx magnetic resonance imaging poses specific engineering challenges. The resolution of magnetic resonance images is first hampered by insufficient signal-to-noise ratio. Dedicated surface coils and/or higher field strengths overcome this limitation. Receive-only and transmit/receive 1-inch-diameter coils are shown to be suitable for skin imaging at 1.5 T, 3 T, and 7 T, and a dedicated three-channel array for larynx imaging provides a dramatic increase in resolution over the conventionally used 8-channel neurovascular array. The next engineering challenge involves eliminating artifacts from high-resolution images. Chemical shift artifacts are a concern in skin imaging, especially at higher field strengths, because the hypodermis is a fat layer. A multi-echo sequence is introduced that separates fat and water and provides good signal-to-noise ratio for all skin layers. Motion artifacts affect both skin and larynx images. In skin, where motion is usually rigid-body, navigator-based motion correction proves effective, and navigators can be integrated into the multi-echo sequence that separates fat and water. In larynx, where motion is complex, a new real-time algorithm combining a reacquisition strategy with navigator-based motion correction accounts for the different types of motion. One additional concern with skin imaging at higher field strengths is the increase in the spin-lattice relaxation time T1, which compromises the signal-to-noise ratio. Robust T1 mapping requires the use of a 4-parameter model. A novel nonlinear Least-Squares algorithm reduces the complex minimization problem to a straightforward 1D search, making the fitting procedure much faster. T1 mapping performed in skin at 1.5 T, 3 T, and 7 T shows that the increase in T1 slightly attenuates the benefits of higher field strengths but does not offset them.
Download or read book Bioengineering of the Skin written by Klaus-Peter Wilhelm and published by CRC Press. This book was released on 2006-09-27 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spanning the many advancements that have taken place in the field since the First Edition of this book was published, this Second Edition emphasizes the imaging of the skin in its entirety, rather than focusing solely on surface layers. The Second Edition includes new chapters on technologies such as in vivo confocal laser scanning microscopy, Rama
Download or read book Agache s Measuring the Skin written by Philippe Humbert and published by Springer. This book was released on 2017-05-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first edition of this book was published in 2004, to much acclaim, the pace of innovation in the field of skin metrology has increased and various new technologies have become available. This new, revised edition reflects these advances by presenting the current theory and practice of noninvasive investigation and measurement of the skin and its appendices in health and disease. The first, extensive part of this authoritative work is devoted to the physiology and metrology of the various structural components of the skin. Skin functions and their measurement are then discussed in detail, with sections on mechanical protection, photoprotection, barrier function, immune function, thermoregulation, and sensory function. In addition, careful consideration is given to skin disease rating and skin maps, and a unique list of physical and biological constants and units is provided. Not only is this new edition the first comprehensive, practical handbook in this domain – it will also serve as a manual of skin physiology and collates anatomical, functional, and physical quantitative data that would otherwise be arduous to retrieve because of their dispersal throughout the literature. It will prove a valuable resource for dermatologists, cosmetologists, bioengineers, physiologists, pharmacists, and all others who deal with the skin in their work.
Download or read book Non Invasive Diagnostic Techniques in Clinical Dermatology written by Enzo Berardesca and published by Springer Science & Business Media. This book was released on 2013-12-02 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive but compact guide to the latest technical and technological developments in the growing field of non invasive diagnosis in clinical dermatology. Information is provided on the practical and technical characteristics of a wide range of equipment and methods for in vivo measurements that aid in the investigation of skin function, the evaluation of topically applied products and the monitoring of skin disease. Individual sections are devoted to imaging techniques, skin analysis, superficial skin analysis, skin mechanics, water and stratum corneum hydration and erythema and blood flow. All of the authors are experts in the field, with detailed knowledge of the techniques they describe. Non Invasive Diagnostic Techniques in Clinical Dermatology will be of value for all dermatologists, whether they are engaged in delivering patient care or in research programs, for cosmetic scientists and for biologists involved in skin research and product assessment.
Download or read book Bioengineering of the Skin written by Joachim W. Fluhr and published by CRC Press. This book was released on 2004-08-27 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioengineering of the skin, or more precisely the biophysical assessment of skin physiology, is moving rapidly from a descriptive approach to a deeper understanding of biophysical and biochemical processes. This second edition of the popular text Bioengineering of the Skin: Water and Stratum Corneum reflects the progress in the field, focusing on t
Download or read book Convergence of Terahertz Sciences in Biomedical Systems written by Gun-Sik Park and published by Springer Science & Business Media. This book was released on 2012-10-19 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent technological breakthrough in the field of Terahertz radiation has triggered new applications in biology and biomedicine. Particularly, biological applications are based on the specific spectroscopic fingerprints of biological matter in this spectral region. Historically with the discovery of new electromagnetic wave spectrum, we have always discovered new medical diagnostic imaging systems. The use of terahertz wave was not realized due to the absence of useful terahertz sources. Now after successful generation of THz waves, it is reported that a great potential for THz wave exists for its resonance with bio-molecules. There are many challenging issues such as development of THz passive and active instrumentations, understanding of THz-Bio interaction for THz spectroscopy, THz-Bio nonlinear phenomena and safety guideline, and THz imaging systems. Eventually the deeper understanding of THz-Bio interaction and novel THz systems enable us to develop powerful THz biomedical imaging systems which can contribute to biomedical industry. This is a truly interdisciplinary field and convergence technology where the communication between different disciplines is the most challenging issue for the success of the great works. One of the first steps to promote the communications in this convergence technology would be teaching the basics of these different fields to the researchers in a plain language with the help of Convergence of Terahertz Science in Biomedical Systems which is considered to be 3-4th year college students or beginning level of graduate students. Therefore, this type of book can be used by many people who want to enter or understand this field. Even more it can be used for teaching in universities or research institutions.
Download or read book Imaging of Soft Tissue Tumors written by Arthur M DeSchepper and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: Only with the advent of computed tomography and magnetic resonance imaging have radiologists become familiar with this uncommon pathology. The emphasis here is on MRI, as it guarantees the most accurate diagnosis of soft tissue tumours. Because of their rarity, multi-centric studies are necessary to collect statistically relevant numbers of these tumours and so assess the value of new imaging techniques in their detection, staging, grading, tissue characterisation, and post-treatment follow-up. This is a reflection of the work of a prestigious European study group of more than 30 such co-investigators - including experts on medical imaging - who collected more than 800 documented and histologically proven cases of soft tissue tumours. For each tumour type, 10-12 cases are shown, supported by 3-4 photos. Unsurpassed in its collection of case studies.
Download or read book Handbook of Non Invasive Methods and the Skin written by Jorgen Serup and published by CRC Press. This book was released on 2006-02-23 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from prominent experts, this comprehensive handbook covers the field of non-invasive biophysical measurement methods in clinical and experimental dermatology. Structured to provide both educational and practical information, the book has proven to be of value to both young researchers and senior scientists. All coverage of major evaluation and measurement methods share a consistent format, covering scope, sources of error, application, and validity. The second edition incorporates 69 revised chapters and 95 new chapters covering topics such as computer technique, imaging techniques, skin friction, barrier functions, and more.
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 2160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book Principles of Nuclear Magnetic Resonance Microscopy written by Paul T. Callaghan and published by . This book was released on 1993 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although nuclear magnetic resonance is perhaps best known for its spectacular utility in medical tomography, its potential applicability to fields such as biology, materials science, and chemical physics is being increasingly recognized as laboratory NMR spectrometers are adapted to enable small scale imaging. This excellent introduction to the subject explores principles and common themes underlying two key variants of NMR microscopy, and provides many examples of their use. Methods discussed are not only important to fundamental biological and physical research, but have applications to a wide variety of industries, including those concerned with petrochemicals, polymers, biotechnology, food processing, and natural product processing. The wide range of scientists interested in NMR microscopy will want to own a copy of this book.
Download or read book Skin Moisturization written by James J. Leyden and published by CRC Press. This book was released on 2002-02-26 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighting functional changes in the structure of the epidermis and the stratum corneum, this book presents overviews of clinical and consumer testing approaches together with ex vivo evaluation procedures. It covers key aspects of personal moisturizing and washing products, such as efficacy and formulation of moisturizing ingredients, safety and
Download or read book Wound Healing written by Anna Falabella and published by CRC Press. This book was released on 2005-08-09 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a comprehensive review of the field from basic scientific concepts to assessment and treatment strategies, this reference provides an excellent understanding of the epidemiology, diagnosis, and prevention of acute and chronic wounds-analyzing the latest research from some of the most experienced clinicians and scientists in the field, as w
Download or read book Cosmetics written by P. Elsner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: th Together with the 6 Amendment - Council Directive 93/35 EEC - to the Cosmetic Directive 76/768 EEC it was the first time that, according to Article 7b, special claims of efficacy could be legally attributed to cosmetic products but under the obligation to make evidence of the claimed effects; also an entirely new "controller" was introduced - the independent "safety assessor", This indeed means not only progress in reliable and honest marketing arguments but above all transparency as to the respective proof and thus protection of consumer's health. Such claims demand high standards in scientifi cally based methodology and their results in order to prove such demands evidently. There are also within the 6" Amendment to the Cosmetic Directive in Article 4a strict restrictions as to the further use of conventional animal testing for cosmetic pro ducts and their ingredients and especially for finished products. Without doubt there is a competition between the necessity and expectations on consumer health on the one hand and the requirements of acknowledged protection of animals as done in Council Directive 86/609 EEC on the other. But at least, based on the present state of knowledge, tests in human beings cannot replace animal testing in all instances. Not only ethical reasons alone prohibit or impede testing in humans but also very often the lack of knowledge on functional and/or biological processes underlaying observed effects with the consequence that suitable experimental methodologies are missing.
Download or read book Laser Dermatology written by David J. Goldberg and published by John Wiley & Sons. This book was released on 2011-08-26 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first all-inclusive text on the pitfalls, complications and controversies surrounding the use of lasers in dermatology and aesthetic medicine Each chapter starts off by highlighting the key points and essential concepts, followed by a review of the associated pearls and problems Provides the reader with tips on how to improve the safe and effective use of lasers Images focus on the pearls and problems Laser Dermatology: Pearls and Problems is different from other laser dermatology books. Each of the five chapters begins by highlighting key points and essential concepts, then focuses on the pearls and problems for each area – based on the author’s vast experience in the field of laser dermatology. Dr. Goldberg addresses: Vascular Lasers Laser Hair Removal Pigmented Lesions, Tattoos, and Disorders of Hypopigmentation Ablative Lasers and Devices Non-Ablative Photorejuvenation and Skin Remodeling Dr. Goldberg goes beyond the standard “before and after” approach to use actual images to demonstrate the pearls and pitfalls discussed in the text.
Download or read book Fluorine Magnetic Resonance Imaging written by Ulrich Flogel and published by CRC Press. This book was released on 2016-10-26 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, fluorine (19F) magnetic resonance imaging (MRI) has garnered significant scientific interest in the biomedical research community owing to the unique properties of fluorinated materials and the 19F nucleus. Fluorine has an intrinsically sensitive nucleus for MRI. There is negligible endogenous 19F in the body and thus there is no background signal. Fluorine-containing compounds are ideal tracer labels for a wide variety of MRI applications. Moreover, the chemical shift and nuclear relaxation rate can be made responsive to physiology via creative molecular design. This book is an interdisciplinary compendium that details cutting-edge science and medical research in the emerging field of 19F MRI. Edited by Ulrich Flögel and Eric Ahrens, two prominent MRI researchers, this book will appeal to investigators involved in MRI, biomedicine, immunology, pharmacology, probe chemistry, and imaging physics.
