Kornhuber and Deecke first recorded and reported the Bereitschaftspotential in 1964. The aim of this book is to bring together in a single volume some of the important research on the Bereitschaftspotential and other movement-related cortical potentials and to highlight and address some of the pertinent questions relating to the Bereitschaftspotential and to identify the key issues for future investigation in this field. This book represents a unique compilation of information about the Bereitschaftspotential and related cortical potentials and techniques for measuring preparatory processes in the brain. The book will be of interest to motor physiologists, psychologists and neurologists working in clinical or research laboratories.

This book is a compilation of the invited papers, which were presented at the Fourth European Symposium on Radiopharmacy and Radiopharmaceuticals, which was held in Baden, Switz- land, 1-4 May, 1991. The First and Third Symposia on Radiopharmacy and Radiopharmaceuticals (Elsinore, Denmark, 1983, 1987) concentrated on the safety and efficacy of radiopharmaceuticals, whereas this Fourth Symposium to some extent followed up the subject of the Second Symposium (Cambridge, UK, 1985): recent developments in radiopharmacy and current research on radiopharmaceuticals. The symposium was organized by the Radiopharmacy Group of the Swiss Society of Medical Radiology (Section Nuclear Medicine) under the auspices of the task group on radiopharmaceu- cals of the European Association of Nuclear Medicine (EANM). The organizing committee consisted of the cochairmen Drs. P.A. Schubiger (Paul Scherrer Institute (PSI), Villigen) and G. Westera (University Hospital, ZiJrich) and the members H.-F. Beer, P. Bl iuenstein, P. Hasler (all PSI) and H. M icke (Cantonal Hospital, Basel). The subjects of this Symposium ranged from isotope production to clinical testing of radioph- maceuticals, including the organisational prerequisites. In addition, the development of new radiopharmaceuticals and of PET radiopharmacy, and the concomittant ongoing evolution of regulatory guidelines by national (various European countries, USA) and international (EC) authorities, induced us to honor the vivid interest in this subject and to make it an important part of this symposium.

It was at Frankfurt/Mainin 1899 that Paul Ehrlich first expounded his famous "site-chain theory" -which described the basic immunological principal of antibody-antigen interactio- on the occasion of the opening of the Institute for Experimental Therapeutics (which was later named after him). Nearly 100 years have passed since, and in retrospect it can be said that the "Ehrlich Era" (first steps in immunology "Magic Bullet" concept) and the "Behring Era" (detection of antibodies and serum therapy) formed the essential basis in the development of immunology. Niels K. Jerne, the former director of the Paul Ehrlich Institute in Frankfurt/Main received, together with Georges Kohler and Cesar Milstein, the Nobel Prize in Medicine 1984. These late successors of Ehrlich and Behring first described the hybridoma technology (in 1975) which enabled one of the most important and revolutionary technological innovations in the field of immunology -the production of monoclonal antibodies. It happens that, the time of the publication of this book, just a decade has passed since the first use of radiolabelled monoclonal antibodies in man (by the Lausanne Group). Over these 10 years a tremendous progress has taken place in the field of immunoscintigraphy: A large panel of highly specific monoclonal antibodies against tumour-associated antigens as well as normal cell compounds have been developed. Enormous progress has been made in the field of radiolabelling -from iodine-131 to technetium-99mor even positron-emittingradionuclides, e. g. iodine-124.

In the past nuclear medicine has tended to develop in cycles governed by the development of new radiopharmaceuticals followed or preceded by advances in instrumentation. The development of alternative techniques, such as X-Ray Computer Tomography, NMR Imaging and Ultrasound have also had a stimulating effect and pointed the way to new developments. The development of Positron Emission Tomography, while in itself of limited application because of high costs involved, provided a great deal of information which led to the development of new organ or disease specific, single photon emitting radiopharmaceuticals together with tomographic Gamma cameras, whereby detailed information on the biodistribution of the reagents could be obtained with accurate spatial resolution presented in a form suitable for comparison with the other imaging modalities. This technology, known as Single Photon Emission (Computer) Tomography (SPECT or SPET, as the mood takes you) is now an essential tool in nuclear medicine. The volume presents a basic guideline to the technology involved and discusses the application of the method to the investigation of various anatomical regions of the body. The book is an aide memoire to the routine practitioner and a source of information for other medical specialists. "

It is estimated that the functionally significant body of knowledge for a given medical specialty changes radically every 8 years. New specialties and "sub specialization" are occurring at approximately an equal rate. Historically, estab lished journals have not been able either to absorb this increase in publishable material or to extend their readership to the new specialists. International and national meetings, symposia and seminars, workshops, and newsletters success fully bring to the attention of physicians within developing specialties what is occurring, but generally only in demonstration form without providing historical perspective, pathoanatomical correlates, or extensive discussion. Page and time limitations oblige the authors to present only the essence of their material. Pediatric neurosurgery is an example of a specialty that has developed during the past 15 years. Over this period, neurosurgeons have obtained special train ing in pediatric neurosurgery, and then dedicated themselves primarily to its practice. Centers, Chairs, and educational programs have been established as groups of neurosurgeons in different countries throughout the world organized themselves respectively into national and international societies for pediatric neurosurgery. These events were both preceded and followed by specialized courses, national and international journals, and ever-increasing clinical and investigative studies into all aspects of surgically treatable diseases of the child's nervous system."

Fourier Vision provides a new treatment of figure-ground segmentation in scenes comprising transparent, translucent, or opaque objects. Exploiting the relative motion between figure and ground, this technique deals explicitly with the separation of additive signals and makes no assumptions about the spatial or spectral content of the images, with segmentation being carried out phasor by phasor in the Fourier domain. It works with several camera configurations, such as camera motion and short-baseline binocular stereo, and performs best on images with small velocities/displacements, typically one to ten pixels per frame. The book also addresses the use of Fourier techniques to estimate stereo disparity and optical flow. Numerous examples are provided throughout. Fourier Vision will be of value to researchers in image processing & computer vision and, especially, to those who have to deal with superimposed transparent or translucent objects. Researchers in application areas such as medical imaging and acoustic signal processing will also find this of interest.

This volume represents the primary lectures of the NATO Advanced Study Institute (ASI) on "Nuclear Magnetic Resonance in Modern Technology," which was held at Sarigerme Park (near the Dalaman Airport) on the southern Aegean shore of Turkey from August 23 to September 4, 1992. As indicated in the title, this ASI was aimed at examining, displaying, and perhaps influencing, the role of nuclear magnetic resonance (NMR) in modern technological activity. The lectures summarized in this volume and the numerous short contributed talks and posters were primarily aimed at the question, "What is NMR doing in support of modern technology?" During the main discussion periods and the numerous small scheduled meetings of specific interest groups this same topic was also addressed, along with questions like, "What could or should NMR be doing in support of modern technology?" With this kind of subject orientation, the organizers attempted to include a large participation at the ASI from scientists and engineers from diverse private industries in which NMR does, or perhaps should, play a substantial role in supporting or optimizing technology. Perhaps because of a combination of worldwide industrial contractions and residual corporate nervousness regarding the then recent Gulf War (which caused a one-year postponement of this ASI), the participation from private industry was numerically disappointing. We hope that this book will serve to bring the role of NMR in modern industry to the attention of numerous industrial scientists and engineers who were unable to attend the AS .

The three-volume set LNCS 7510, 7511, and 7512 constitutes the refereed proceedings of the 15th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2012, held in Nice, France, in October 2012. Based on rigorous peer reviews, the program committee carefully selected 252 revised papers from 781 submissions for presentation in three volumes. The first volume includes 91 papers organized in topical sections on abdominal imaging, computer-assisted interventions and robotics; computer-aided diagnosis and planning; image reconstruction and enhancement; analysis of microscopic and optical images; computer-assisted interventions and robotics; image segmentation; cardiovascular imaging; and brain imaging: structure, function and disease evolution.

Carpal-tunnel and other entrapment syndromes are perhaps the most common work-related injuries currently reported. With this book, Vladimir Golovchinsky presents the first evidence of double-crush syndrome as a subgroup of these. To date the existence of double-crush syndrome has been a matter of debate. Dr. Golovchinsky presents a statistical analysis of substantial clinical material, which finds a cause-and-effect relationship between cervical or lumbar radiculopathy and peripheral entrapment in corresponding nerves, thus proving the existence of double-crush syndrome. This book will be invaluable to physicians performing EMG-NCV testing and to other healthcare professionals who encounter peripheral entrapment syndromes in their practices.

This 'in vivo' atlas contains more than 50 magnetic resonance (MR) images of the brain. Each structure is represented in the axial, coronal and sagittal plane, magnified in colour schemes and reconstructed in 3D images with a useful millimetric scale. The atlas offers the reader a practical and simple tool for surgical planning and for diagnostic and anatomical studies. The high level of anatomical definition of the in vivo MR images means that there is no loss in precision as a result of post-mortem changes. No doubt, this book is an excellent teaching instrument for all students of the neurosciences, regardless of the individual level of training and expertise.

Among the readily available -emitting radionuclides, the nuclides of iodine have the greatest versatility in labeling both the hydrophilic and the lipophilic compounds that are used in biology and medicine. Biologically important micrmolecules, semimacromolecules, and macromolecules have been identified which, after iodination, almost maintain the same molecular configuration and similar biologic specificity as those of the parent molecules. The multiple techniques for iodination and the clinical use of iodinated products have made possible the present status of the development of diagnostic nuclear medicine. 125r, with a half-life of 60 days, has a crucial role in competitive protein-binding studies. 131r is useful for measuring thyroid uptake, for the diagnosis of thyroid carcinoma and metastasis, and for therapy. 1nr , with a reasonably shorter half-life, is almost ideal for thyroid workup and for a few useful labeled radiopharmaceutical. Although ~c is used more widely in diagnostic procedures, the radionuclides of iodine will always have a major role in biology and medicine. A considerable amount of information is scattered in the literature regarding the chemistry of radioiodination and the mechanism of tracer localization in cells and tissues. Labeled peptides, proteins, and antibodies are extensively used for protein turnover studies, receptor binding and tumor imaging studies, and radioimmunoassay. The general trend in the use of tracers in clinical nuclear medicine has been an evolution from 3H, 14C, 11C, and 13 to 125 , 131 and 123r to ~c and 111rn.

"This book is concerned with a probabilistic approach for image analysis, mostly from the Bayesian point of view, and the important Markov chain Monte Carlo methods commonly used....This book will be useful, especially to researchers with a strong background in probability and an interest in image analysis. The author has presented the theory with rigor he doesn t neglect applications, providing numerous examples of applications to illustrate the theory." -- MATHEMATICAL REVIEWS"

Electron magnetic resonance spectroscopy is undergoing something akin to a renaissance that is attributable to advances in microwave circuitry and signal processing software. EPR: Instrumental Methods is a textbook that brings the reader up to date on these advances and their role in providing better experimental techniques for biological magnetic resonance. Chapters in this book guide the reader from basic principles of spectrometer design through the advanced methods that are providing new vistas in disciplines such as oximetry, imaging, and structural biology. Key Features: Spectrometer design, particularly at low frequencies (below X-band), Design of spectrometer components unique to ENDOR and ESEEM, Optimization of EMR spectrometer sensitivity spanning many octaves, Algorithmic approach to spectral parameterization, Application of Fourier Methods to polymer conformation, oximetry, and imaging.

This book discusses contemporary features of ject, creating, therefore, a lacuna the could be diagnosis of endocrine diseases using the filled by this project. radiologic technique of percutaneous venous This book is intended to be a practical guide blood sampling for hormone assay. A compre- for vascular and interventional radiologists, in- hensive survey of the field is provided by the ternists, surgeons, endocrinologists, and other contributing authors, who have considerable physicians who care for patients with endocrine expertise in the subject. Some have published diseases. The intention is to provide a practical several articles in the literature; others have text covering anatomical data, clinical prob- extensive clinical experience. lems related to the diagnosis of the endocrine The approach to many of the endocrine dis- diseases, patient preparation for the sampling, eases has been markedly improved ~uring the blood sampling techniques, sample manipula- last two decades because of selective venous tion and storage, laboratory data, and clinical blood sampling, not only in the diagnosis of the significance of the hormone sampling and condition but especially in the precise localiza- assay. tion of the hormone-producing lesion and its clinical significance. Scattered informationbn venous blood sam- pling is available in the literature, but there is Renan Uftacker no comprehensive text dealing with the sub- Reingard Sorensen Contents Preface v Contributors xi 1 Selective Venous Sampling for the Differential Diagnosis of Female Hyperandrogenemia 1 Lathar Moltz and Reingard Sorensen Introduction ...1 Diagnostic Procedures ...2 Indications ...4 Anatomy and Anatomical Variations...

In recent years cell-based technologies have gained significant scientific attention, and have become a matter of intense public debate as well. Namely, (i) tissue engineering, the construction of tissues and whole organs using molecularly-designed resorbable biomaterials to create new tissue de novo with or without transplanting cells; (ii) the potential use of human embryonic stem cells for transplantation and regenerative medicine (with similar potential for adult-derived stem cells); (iii) and gene therapy, in relation with cell transplantation, have taken their places as the most discussed biomedical issues of the day. New findings in biomimetic materials, cell signalling pathways, extracellular matrix receptors and ligands, growth factors, and the human genome project are motivating the developments in these challenging research areas. This book includes manuscripts on tissue engineering, stem cells and gene therapies authored by world-renowned scientists of the field. The first section of the volume consists of four chapters giving perspectives for the current status and potential future of tissue engineering and stem cell technologies. The second section of the volume includes five chapters based on experimental and clinical data. In this section, the role of stem cells in liver tissue engineering, cell-based therapies in diabetes mellitus, and chronic degenerative diseases of the central nervous system, and adult-derived stem cell therapies are discussed. The two chapters of the third section focus on the biomarkers for tissue-engineered products, namely for tissue-engineered skin. The eight chapters of the fourth section discuss novel biomaterials developed for neural-, vascular-, aortic-, bone-, cartilage- and endocrine pancreas-tissue engineering applications. The last section of the book includes chapters on practical gene targeting applications, controlled release in gene therapy and tissue engineering, antibodies in cancer, acute-phase genes and phage-displayed peptide libraries. Proceedings of BIOMED 2002 The 9th International Symposium on Biomedical Science and Technology, held September 19-22, 2002, in Antalya, Turkey.

As an addition to the European postgraduate training system for young neurosurgeons we began to publish in 1974 this series devoted to Advances and Technical Standards in Neurosurgery which was later sponsored by the European Association of Neurosurgical Societies. The fact that the English language is well on the way to becoming the international medium at European scientific conferences is a great asset in terms of mutual understanding. Therefore we have decided to publish all contributions in English, regardless of the native language of the authors. All contributions are submitted to the entire editorial board before publication of any volume. Our series is not intended to compete with the publications of original scientific papers in other neurosurgical journals. Our intention is, rather, to present fields of neurosurgery and related areas in which important recent advances have been made. The contributions are written by specialists in the given fields and constitute the first part of each volume. In the second part of each volume, we publish detailed descriptions of standard operative procedures, furnished by experienced clinicians; in these articles the authors describe the techniques they employ and explain the advantages, difficulties and risks involved in the various procedures. This part is intended primarily to assist young neurosurgeons in their post graduate training. However, we are convinced that it will also be useful to experienced, fully trained neurosurgeons."

This brief provides an in-depth overview of the physics of hadron therapy, ranging from the history to the latest contributions to the subject. It covers the mechanisms of protons and carbon ions at the molecular level (DNA breaks and proteins 53BP1 and RPA), the physics and mathematics of accelerators (Cyclotron and Synchrotron), microdosimetry measurements (with new results so far achieved), and Monte Carlo simulations in hadron therapy using FLUKA (CERN) and MCHIT (FIAS) software. The text also includes information about proton therapy centers and carbon ion centers (PTCOG), as well as a comparison and discussion of both techniques in treatment planning and radiation monitoring. This brief is suitable for newcomers to medical physics as well as seasoned specialists in radiation oncology.

The present volume is the results of 6 years' work by our team, during which time 2300 CT scans of the pituitary region were carried out. This was made possible by the close collaboration between physicians and technicians in our neuroradiological department, as well as by numerous corresponding physi cians. We wish to express our gratitude for their confidence and our sincere thanks to our colleagues at Besan90n, Dijon, Grenoble, Lyon, Montpellier, and Strasbourg. Furthermore, we especially wish to thank the patients who willingly accepted the difficult requirements of these studies. We are grateful to the technicians at the Neuroradiology Department of the Centre Hospitalier et U niversitaire de Besan90n, who have perfected the methodology so as to meet the ever increasing imperatives for precise anatomical mapping of the pituitary gland and the surrounding region; without their efforts, this book would never have been possible. Finally, we wish to express our thanks to the medical photographer of our group, as well as the secretarial staff for their contribution to the successful production of this work. We thank Labora toires Guerbet and General Electric for their excellent assistance, and Springer Verlag for their care and competence in the production of this book. In writing Computed Tomography of the Pituitary Gland, we have sought to develop morphological study of the pituitary gland to a degree of reliability comparable to that of laboratory findings in endocrine disorders.

Stochastic Image Processing provides the first thorough treatment of Markov and hidden Markov random fields and their application to image processing. Although promoted as a promising approach for over thirty years, it has only been in the past few years that the theory and algorithms have developed to the point of providing useful solutions to old and new problems in image processing. Markov random fields are a multidimensional extension of Markov chains, but the generalization is complicated by the lack of a natural ordering of pixels in multidimensional spaces. Hidden Markov fields are a natural generalization of the hidden Markov models that have proved essential to the development of modern speech recognition, but again the multidimensional nature of the signals makes them inherently more complicated to handle. This added complexity contributed to the long time required for the development of successful methods and applications. This book collects together a variety of successful approaches to a complete and useful characterization of multidimensional Markov and hidden Markov models along with applications to image analysis. The book provides a survey and comparative development of an exciting and rapidly evolving field of multidimensional Markov and hidden Markov random fields with extensive references to the literature.

Magnetic resonance imaging of the heart allows a quick and exact evaluation of global and regional pump function, regional myocardial wall motion, myocardial perfusion and coronary blood flow. Some of these parameters must also be analyzed under stress conditions to identify myocardial ischemia.

By combining these functional parameters with high-resolution anatomical images, which are even sufficient to depict the coronary arteries, magnetic resonance imaging has become one of the most important noninvasive procedures to study the condition of the heart and is being increasingly used in the clinical setting. Therefore, it is important not only to optimize and evaluate the technique in specialized centers, but also for a broad variety of users to become familiar with the wide range of applications for this method.

In this book, which is aimed at cardiologists, radiologists, and technical assistants, the physical fundamentals and scanning techniques are clearly described. In addition, practical guidelines for the anatomical planning of the examination and for patient care are offered. The accompanying CD-ROM contains additional figures and numerous videos.

This is the first book dedicated to providing exam practice in the new required single best answer question style for the FRCA. It contains 300 single best answer multiple choice questions and advice on how to approach revision and sitting the exam. There are also four 75-question exam papers, each with an answer section containing detailed explanations of the reasoning behind the answer and providing background information about each topic. SBAs for the Final FRCA may be used for examination practice and as a source of knowledge on many of the key topics in the syllabus. From the writing team behind SAQs for the Final FRCA, this book uses a similar style of challenging questions and well researched explanations to help the candidate through the new FRCA written paper. This is an invaluable tool for your exam preparation.

The seminar on "The application of NMR techniques on the body composition of live animals," was held on 14 - 15 lune, 1988 at the Bundesforschungsanstalt fur Landwirtschaft (FAL), Institut fur Tierzucht und Tierverhalten, Mariensee, Germany. This was the third in aseries of meetings organized in the framework of the European Communities (EC) programme for the coordination of agricultural research. The earlier meetings were on "In vivo estimation of body composition," in 1981 in Denmark, and "In vivo measurements of body composition in meat animals," in 1983 in the UK.. The emphasis of the Mariensee meeting on the application of nuclear magnetic resonance techniques benefitted greatly from new equipment just installed at the Institute. Furthermore it was made clear that this type of large-scale facility, which is not readily found elsewhere, could be made available to promote international collaboration in animal science. After discussing the basic principles of the NMR technique and comparing it with alternative, non-destructive methods of body composition analyses, the programme of the Mariensee group was discussed. The obvious advantages of the NMR technique were acknowledged and will clearly have to be weighed against the rather high investment costs for the equipment at present."

As with the introduction of x -ray computed tomography, much of the initial development of magnetic resonance applications tended to focus on the central nervous system. The development of magnetic resonance imaging applications to other organ systems such as the chest, abdomen, pelvis and extremities has lagged somewhat behind, awaiting technical improvements, and a broader user base. The past two years have seen a marked increase in imaging applications throughout the body, most notably the musculoskeletal system. It is in this regard, that MRI of the Body is a welcome arrival as a text which describes both basic principles of magnetic resonance ima ging and surveys the current status of magnetic resonance imaging applications throughout the body. The volume is concise, focused, clinically oriented, and abun dantly illustrated. In each organ system, the appropriate technical approach is discussed, the normal anatomic features are reviewed, and the range of pathologic appearances which may be encountered are described. The authors of the chapters provide a balanced overview of MR applications and describe both present limitations and future potential of magnetic resonance imaging applications in the organ system described.

TWENTY-FIVE years ago in Russia, Zavoisky made the first experimen tal observation of electron spin resonances; and a year later Purcell, Torrey and Pound at Harvard and Bloch, Hansen and Packard at Stanford ('The Harvard of the West') observed nuclear magnetic resonances for the first time. In both cases (ESR and NMR) the phenomena had been previously predicted, and Gorter - surely one of the most unlucky experimenters of our time - had made his noble attempts to detect magnetic resonances. Purcell et aZ. , having beaten their radar swords into scientific ploughshares, used a re 3 sonant coaxial cavity, filled the inductive part with 850 cm of paraffin, and produced a resonance with a signal-to-noise ratio of 20. They predicted that the sensitivity could be increased several hundred-fold and foresaw applications in determining magnetic mo ments, investigating spin-lattice coupling and measuring magnetic fields. Their letter reached the editor of Phys. Rev. on Christmas Eve 1945, and the basis of NMR in the solid state was laid. Bloch et aZ. , fortunately working independently, established the entirely different, crossed-coil approach to the observation of NMR in a water sample, which they doped with paramagnetic ions to reduce the relaxation times. They had laid the foundation of liquid-state NMR. Their letter to Phys. Rev. was received on 29 January 1946.

In the last ten years the pediatric neurosurgeon has witnessed a real revolution in the diagnosis and treatment of pediatric hydrocephalus, the most frequently encountered condition in everyday clinical practice. The evolution of MRI and the advent of neuroendoscopic surgery have resuscitated the interest in the classification, etiology and pathophysiology of hydrocephalus. The book offers an updated overview on the recent progress in this field, and a new approach to hydrocephalus: the reader will find in it a modern and new presentation of an old disease, where genetics, endoscopy, cost-effectiveness analyses and many other aspects of the various therapies are extensively discussed. The volume will be useful not only for neurosurgeons, but for all specialists interested in the various aspects of hydrocephalus: pediatricians, radiologists, endocrinologists, pathologists and geneticists.