Dec 07, 2021  
2021-2022 College Catalog 
    
2021-2022 College Catalog
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RAD 175 - Medical Imaging Technology II

3 Credits, 3 Contact Hours
3 lecture periods 0 lab periods

Continuation of RAD 172 /RAD 172LB . Includes concepts of radiographic image quality, x-ray interactions with matter, formulation of x-ray techniques, automatic exposure control, and x-ray detection devices.

Prerequisite(s): RAD 171 , RAD 171LB , RAD 172 , RAD 172LB , RAD 173LC .
Corequisite(s): RAD 174LB , RAD 174 , RAD 175LB , RAD 176LC  
Information: Consent of program director is required before enrolling in this course.


Course Learning Outcomes
  1. Demonstrate the safe utilization of radiographic equipment while achieving optimum image quality.
  2. Describe the five interactions of x-rays with matter and identify the differences between coherent scatter, Compton scatter and the photoelectric effect.  
  3. Identify and describe computed radiography, scanned projection radiography, in direct and direct digital imaging systems.

Performance Objectives:
  1. Describe the conditions necessary for producing x-rays.
  2. Identify the properties and characteristics of x-rays.
  3. Identify the three factors which are responsible for the attenuation of the x-ray beam.
  4. Describe the interaction process for each of the following:
    1. Unmodified/Coherent
    2. Photoelectric effect
    3. Compton effect
    4. Pair production/Annihilation reaction
    5. Photodisintegration
  5. Identify the factors that affect Visibility of detail.
  6. Identify the geometric factors affecting image quality.
  7. Identify the subject factors that affect image quality.
  8. Identify the tools for producing high-quality images.
  9. Calculate how changes in principal factors affect image quality.
  10. Identify the factors that affect Spatial Resolution.
  11. Prepare a Technique Chart.
  12. Demonstrate the effects of exposure factors and focal spots size on the image.
  13. Describe the difference between phototimer and ion chamber AEC devices.
  14. Describe an Anatomically Programmed AEC system.
  15. Identify the location of phototimer and ion chamber receptors in relation the IR.
  16. Discuss the necessity for a back-up time and the 600 mAs safety override.
  17. Define the Roentgen, Rad, Rem, and the Curie and their equivalent SI units.
  18. Describe the radiation monitoring devices currently available.
  19. Describe how to Design a Safe Facility.
  20. Describe various digital radiography image receptor and detector systems.
  21. Explain the critical elements used in digital systems.
  22. Discuss inherent limitations in each type of system.
  23. Describe the process by which the digital radiography histogram is acquired and the display algorithm is applied to the collected data.
  24. Explain the causes of common digital artifacts.
  25. Demonstrate in the lab the proper utilization of a conventional mobile unit.
  26. Describe the characteristics and operating procedures for mobile units.
  27. Describe the technical factors utilized in mobile fluoroscopy.
  28. Describe and demonstrate the procedures necessary to perform mobile fluoroscopy safely to insure maximum protection for the patient and personnel.

Outline:
  1. Concepts of Radiographic Image Quality
    1. Definitions
    2. Film factors
    3. Geometric factors
    4. Subject factors
    5. Tools for improved radiographic quality
  2. X-Ray Interactions with Matter
    1. Photoelectric absorption
    2. Coherent scatter
    3. Compton scatter
    4. Pair production
    5. Photodisintegration
  3. Formulation of X-Ray Techniques
    1. Variable kVp charts
    2. Fixed kVp charts
    3. High kVp charts
    4. X-ray generator accuracy
  4. Automatic Exposure Control
    1. Phototimer
    2. Ionization chambers
    3. Anatomically programmed radiography
  5. X-Ray Detection Devices
    1. Film badge (photographic)
    2. Thermoluminescence dosimetry
    3. OSL
    4. Geiger-Mueller counter


Effective Term:
Spring 2020



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