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| Title |
| Digital Imaging in Radiography: The Basics (1.5 credit hours) |
| Abstract |
| This module offers a historical overview of digital applications in medical imaging. Basic principles of digital radiographic imaging technology are discussed, including image acquisition, processing, and display. Discussion includes an overview of cassette-based and cassetteless image receptor construction, as well as a brief look at the dynamic range capabilities of digital imaging systems. Course Approval Expiration/End Date: May 1, 2010 Category A Credit This activity may be available in multiple formats or from different sponsors. The ARRT does not allow CE activities such as internet courses, home study programs or directed readings to be repeated for CE credit in the same or any subsequent biennium. |
| Author |
Nina Kowalczyk, MS, RT(R)(QM)(CT), FASRT
 During her professional career, Nina Kowalczyk has worked as a staff technologist in radiography, mammography, CT, and MRI; as a radiography educator and program director; and as a radiology manager/administrator. She is active in professional organizations at the state and national levels. Ms. Kowalcyzk is currently employed as an instructor in the Radiation Sciences Division at The Ohio State University. She serves on the editorial review board for the American Society of Radiologic Technologists and has personally published numerous works. |
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| Objectives |
After studying the information presented, the learner will be able to:
- Discuss the historical development of digital radiography.
- Identify advantages and disadvantages of digital imaging in radiography.
- Describe the design of the various digital image receptors for both direct capture and indirect capture systems to include:
- CR cassettes
- DR indirect conversion receptors
- DR direct conversion receptors
Specify the steps involved in digital image formation to include:
- Data acquisition
- Data processing
- Image display
Explain the photostimulated luminescence phenomenon and explain its role in producing an image utilizing a cassette-based CR system. |
| Resources |
Burns B. Image Acquisition and Exposure Factor Selection, presentation at the 2005 Association of Educators in Radiologic Sciences Conference, Orlando FL, 2005.
Burns B. Digital Radiography Systems Dynamic Range & Latitude, presentation at the 2005 Association of Educators in Radiologic Sciences Conference, Orlando FL, 2005.
Carlton R. and Adler A. Principles of Radiographic Imaging, 4th ed., Albany NY: Delmar Pub; 2006
Cesar L. Computed Radiography: Its Impact on Radiographers. Radiologic Technology. 1997;69 (3):
Chotas H.G., et al. Principles of Digital Radiography with Large-Area, Electronically Readable Detectors: A Review of the Basics. Radiology. 1999; 210:595-599.
Fauber T. Radiographic Imaging and Exposure, 2nd ed., St. Louis: CV Mosby; 2004
Kodak Health Imaging. Digital Imaging Fundamentals, Version 1.2, Rochester NY, 2000.
Kodak Health Imaging. Computed Radiography and Digital Radiography, Version 1.0, Rochester NY, 2000.
Kodak Digital Science: Digital Radiography Using Storage Phosphors. Eastman Kodak Co., 1996.
Tateno Y., Iinuma T., and Takano M. Computed Radiography. Tokyo: Springer-Verlag; 1987.
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