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Computed radiography and picture archiving and communication system

WANG Jun,XIA Yang,CHEN Jun kun (Department of Medical Imaging ,Jinling Hospital, Nanjing 210002,China)  
The current diagnostic radiology has benefited most from the advances in high technology devices ,electronics ,and computers .At the same time ,these advances have only minimally influenced conventional X ray imaging .Nevertheless ,new concepts and terminologies such as computed radiography ,digital radiography ,picture archiving and communication system have emerged .These potential new approaches to medical imaging use advanced imaging modalities and computers to improve or complement the diagnostic radiology ability .Computed radiography is a relatively new concept .The main reason is the significant reduction of defect of radiography .It provides a more complete anatomic definition and display images to assist the radiologist .The technique can improve target definition and characterization .The knowledge of instrument is important for registration and approaches .Computed radigraphy is a good example of intergrating picture archiving and communication system .This integration is a prerequisite of teleradiology .The technology of digital control disposition call for a fully integrated system .We are entering a new area of medical applications of high technology .Computed radiography system are being identified and characterized .Not only technologists but also computer scientists ,engineers ,and physicists are contributing to the development of this exciting new field .Our ultimate goal is to take these superb technologies——radiography system and the computers into the department of radiology of the next century .
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