Clark Positioning In Radiography 12th Edition Pdf Free Download
Pamula Harrison
First published in 1939, this is the definitive text on patient positioning for the diagnostic radiography student and practitioner. The experienced author team appreciates that there is no substitute for a good understanding of basic skills in patient positioning and an accurate knowledge of anatomy to ensure good radiographic practice.
For 66 years students of radiography and radiology have relied on 'Kitty Clark' as the source book for advice and scholarship on radiographic positioning. The new edition represents a further step forward with hundreds of new positioning photographs, brand new explanatory line diagrams, and a clearly defined and easy-to-follow structure. There are new sections on digital imaging and PACS. The basic principles of radiography and digital imaging are covered in the first chapter.
Specialists in dental imaging wrote chapter 10, which deals concisely with dental radiography in 50 pages. Following a general overview of dental radiography there is specific instruction on bitewing, periapical, and occlusal radiography, sections on lateral oblique projections, panoramic tomography and cephalometry. Each of these is clear, consistent and well illustrated with radiographs, diagrams, anatomical images and photographs showing ideal positioning. Many sections also contain examples of poor positioning, detailing what to look for and how positioning may be improved.
This book is for those seeking either an introduction and/or a reference manual on radiographic positioning. It can be strongly recommended. Those with a specific focused interest in dental radiography may well move fairly rapidly on to a more detailed text, suggesting this volume should be on the workbench and in the library and classroom, rather than purchased by individuals.
First published in 1939, this is the definitive text on patient positioning for the diagnostic radiography student and practitioner. The experienced author team appreciates that there is no substitute for a good understanding of basic skills in patient positioning and an accurate knowledge of anatomy to ensure good radiographic practice. This 12th
This edition is an excellent update to this series on radiographic positioning and techniques. The sections on digital radiography provide useful information on the acquisition of digital images and their incorporation into a modern PACs system. This book can be used as either a reference or study aid for the radiography student, technologist, radiologist, or resident who desires to further their knowledge in radiographic techniques.
In radiography and radiotherapy, patients are likely to be exposed to medical device related (MDR) PUs. These are localised injuries to the skin and/or underlying tissue because of sustained pressure from a medical or therapeutic device [14]. MDRs usually appear visually on the superficial layer of the skin and take the shape of the device [15, 16]. In radiography, because of the need to minimise error and produce diagnostically acceptable images, patients are usually transferred onto medical imaging surfaces prior to a procedure [17]. These hard surfaces often have a thin radiolucent mattress on their surface, to aid patient comfort. During radiographic procedures, a pillow may be used, which has valuable consequences for PU minimisation. However not all cases permit a pillow to be used. Furthermore, in some countries such as Portugal and Ghana, diagnostic radiography procedures are typically conducted on hard carbon fibre X-ray tables. By contrast, in radiotherapy, it is important to maintain reproducibility of patient position during planning and treatment, so patients are usually positioned on hard couch surfaces again with no mattress [18]. It is essential that the daily radiotherapy treatment position is the same as that in planning to ensure accuracy of the radiotherapy procedure [19]. Lying on hard imaging and radiotherapy treatment surfaces with no mattress could be harmful to at-risk populations such as elderly patients and those suffering from cancer because of their fragile skin [20]. Confounding this is the fact that some of these procedures take a very long time to complete. For example, cranial stereotactic radiotherapy takes between 40 and 60 minutes depending on the clinical history of the patient [21]. Cervical vertebroplasty, an interventional radiography procedure, takes over an hour to complete and sometimes longer when several cervical fractures are present [22]. Another confounding factor is that patients are intentionally immobilised to minimise image artefacts during the procedure. Immobilisation is harsher in radiotherapy because patient positioning during treatment needs to be assured. For example, the use of immobilisation devices such as full head masks helps to reduce positioning errors but limits patient motion. These are necessary to minimise misdirection of prescribed radiation doses [19]. All these factors could contribute to high interface pressure (IP) between the head and the radiography/radiotherapy surface.