Digital Radiography Systems

Outline

Learning Objectives

Printed Text References

Classroom Visuals

Online Module

Mind Map

Learning Objectives

  1. Identify and briefly describe the functions of a total digital radiography system.

  2. Describe the general advantages of digital radiography compared to film/screen radiography.

  3. Describe the general function of the receptor within a total digital radiography system.

  4. Describe the general function of the image management component within a total digital radiography system.

  5. Describe the general function of the image processing component within a total digital radiography system.

  6. Describe the general function of the memory and storage component within a total digital radiography system.

  7. Describe the general function of the display and display control component within a total digital radiography system.

  8. Describe the general function of the  communications network within a total digital radiography system.

  9. Describe the general function of the patient information system with respect to a digital radiography system.

  10. Describe and explain the general function of a direct digital radiography receptor.

  11. Describe and explain the imaging process using a stimualible phosphor digital radiography receptor.

  12. Compare the advantages and disadvantages of direct and stimualible phosphor receptor systems.

  13. Illustrate and describe the concept of dynamic range for a radiography receptor.

  14. Sketch and explain the factors that limit the dynamic range (latitude) of radiographic film.

  15. Sketch and compare the dynamic range (latitude) of film and digital radiography receptors.

  16. Describe some advantages and possible disadvantages of the wide dynamic range of digital radiography receptors.

  17. Identify and briefly describe the factors in a digital radiography system that have an effect on contrast sensitivity and image contrast.

  18. Identify and briefly describe the factors in a digital radiography system that have an effect on blurring and visibility of detail.

  19. Identify and describe the principle factor that affects image noise in digital radiography.

  20. Describe the process that a radiographer should follow to insure a proper balance between patient exposure and image noise in digital radiography.