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| Title |
| Radiographic Imaging, Part 2: Radiographic Density and Contrast ...COMING SOON! (0 credit hours) |
| Abstract |
| Radiographic Density and Contrast is the second of nine modules in the Radiographic Imaging program. This module will help you understand density and contrast in radiographic images and the factors that affect density and contrast. |
| Author |
Elsevier Inc.,
 This module is adapted from Mosby's Radiography Online: Radiologic Physics, copyright © 2002 - 2004 by Elsevier (USA) reproduced by permission of Elsevier Inc. and edited for use as CE content by Denise Moore, Professor of Radiology, Sinclair Community College.
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| Objectives |
On completion of this module, you should be able to do the following.
1. Define the important terms in the module.
2. Explain why density and contrast are important in diagnostic images.
3. Describe how density is formed on the film in the exposure and development processes.
4. Explain the effects of each of the following factors on both density and contrast.
- mAs
- kVp
- SID
- Intensifying screens
- Grids
- Collimators, aperture diaphragms, cones, and cylinders
- Filtration
- Patient size, thickness of body part
- Film processing and chemicals
- Film contrast
5. Explain how radiologic technologists adjust exposure variables to improve density and contrast. |
| Resources |
For additional information about radiographic density and contrast, visit the following site.
Contrast and Definition |
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