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In CT Suite the doctor and anthropologist Barry F. Saunders provides an ethnographic account of how a particular diagnostic technology, the computed tomographic (CT) scanner, shapes social relations and intellectual activities in and beyond the CT suite, the unit within the diagnostic radiology department of a large teaching hospital where CT images are made and interpreted. Focusing on how expertise is performed and how CT images are made into diagnostic evidence, he concentrates not on the function of CT images for patients but on the function of the images for medical professionals going about their routines. Yet Saunders offers more than insider ethnography. He links diagnostic work to practices and conventions from outside medicine and from earlier historical moments. In dialogue with science and technology studies, he makes a significant contribution to scholarship on the visual cultures of medicine. Saunders’s analyses are informed by strands of cultural history and theory including art historical critiques of realist representation, Walter Benjamin’s concerns about violence in “mechanical reproduction,” and tropes of detective fiction such as intrigue, the case, and the culprit. Saunders analyzes the diagnostic “gaze” of medical personnel reading images at the viewbox, the two-dimensional images or slices of the human body rendered by the scanner, methods of archiving images, and the use of scans as pedagogical tools in clinical conferences. Bringing cloistered diagnostic practices into public view, he reveals the customs and the social and professional hierarchies that are formulated and negotiated around the weighty presence of the CT scanner. At the same time, by returning throughout to the nineteenth-century ideas of detection and scientific authority that inform contemporary medical diagnosis, Saunders highlights the specters of the past in what appears to be a preeminently modern machine.
Recent research and clinical work have demonstrated that the rapid urologic innovation in minimally invasive treatment is creating exciting new horizons in endourology. This sixth volume in the series Recent Advances in Endourology brings that knowledge to a wider audience, focusing on the new concept of endourooncology, which is the merging of endourology and oncology. In the surgical treatment of urologic malignancies, bipolarization - that is, radical extended resection or organ-sparing surgery - is making remarkable advances. Further developments in sophisticated reconstructive surgery using robotic systems and image-guided ablation technology will allow surgeons to formulate minimally invasive, tailor-made procedures for each patient with urologic cancer. In this book, the current status and future prospects of these new technologies are reviewed, illuminating their roles in the future of endourooncology.
Provides an overview of the evolution of CT, the mathematical and physical aspects of the technology, and the fundamentals of image reconstruction using algorithms. Image display is examined from traditional methods through the most recent advancments. Key performance indices, theories behind the measuremet methodologies, and different measurement phantoms in image quality are discussed. The CT scanner is broken down into components to provide the reader with an understanding of their function, their latest advances, and their impact on the CT system. General descriptions and different categories of artifacts, their causes, and their corrections are considered at length.
This book acts as a primer for radiographers upon performing computed tomography (CT) examinations. The focus resides in radiation physics, radiobiology, anatomy, imaging protocols and image evaluation. It seeks to provide readers insight into the practical and innovative approaches within CT, backed up with key literature and examples in practice. Recent innovations and the importance of new technology to acquire enhanced quality remain a focal point. These are essential in understanding the importance of dose optimization, patient anatomy and common pathology observed. Patient care will remain central in this book, supported with a dedicated chapter discussing effective communication, patient education, informed consent, coupled with the assessment of laboratory results and vital signs. The editors draw from recent publications and clinical expertise, supported with the growing trend of technological advances utilized within the CT environment. Critically, this volume focuses on the role of CT for an array of audiences but, more specifically, undergraduate and postgraduate radiographers worldwide.
Most arguments for a rediscovery of the body and the senses hinge on a critique of “visualism” in our globalized, technified society. This approach has led to a lack of actual research on the processes of visual “enskillment.” Providing a comprehensive spectrum of case studies in relevant contexts, this volume raises the issue of the rehabilitation of vision and contextualizes vision in the contemporary debate on the construction of local knowledge vs. the hegemony of the socio-technical network. By maintaining an ethnographic approach, the book provides practical examples that are both accessible to undergraduate students and informative for an academic audience.
Cincinnati Magazine taps into the DNA of the city, exploring shopping, dining, living, and culture and giving readers a ringside seat on the issues shaping the region.
DIVAn ethnography of a hospital's CT (Computed Technography) department that examines how medical imaging alters our ideas about the human body./div
The book offers a comprehensive and user-oriented description of the theoretical and technical system fundamentals of computed tomography (CT) for a wide readership, from conventional single-slice acquisitions to volume acquisition with multi-slice and cone-beam spiral CT. It covers in detail all characteristic parameters relevant for image quality and all performance features significant for clinical application. Readers will thus be informed how to use a CT system to an optimum depending on the different diagnostic requirements. This includes a detailed discussion about the dose required and about dose measurements as well as how to reduce dose in CT. All considerations pay special attention to spiral CT and to new developments towards advanced multi-slice and cone-beam CT. For the third edition most of the contents have been updated and latest topics like dual source CT, dual energy CT, flat detector CT and interventional CT have been added. The enclosed CD-ROM again offers copies of all figures in the book and attractive case studies, including many examples from the most recent 64-slice acquisitions, and interactive exercises for image viewing and manipulation. This book is intended for all those who work daily, regularly or even only occasionally with CT: physicians, radiographers, engineers, technicians and physicists. A glossary describes all the important technical terms in alphabetical order. The enclosed DVD again offers attractive case studies, including many examples from the most recent 64-slice acquisitions, and interactive exercises for image viewing and manipulation. This book is intended for all those who work daily, regularly or even only occasionally with CT: physicians, radiographers, engineers, technicians and physicists. A glossary describes all the important technical terms in alphabetical order.