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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Places on the X-Ray image that are _________ have film exposure. Places that are __________ have no exposure.
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Black
White |
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Name the 5 opacities from darkest image to brightest:
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1- Gas
2- Fat 3- Fluid/Soft tissue 4- Bone/Mineral 5- Metal |
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Properties that stop x-rays and prevents film from blackening:
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1- Opacity
2- Thickness of material 3- Original strength of the x-ray |
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When there is ________ opacity, there is more black
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Less
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To be seen on a radiograph, a margin must be adjacent to something that is __________ in opacity.
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Different
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___________ is material introduced into the body to create opacity interface for radiographic demonstration of structures.
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Contrast medium
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________ is a negative contrast medium.
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Gas.
Gas in _____ and _____ provide natural contrast. |
Bowel
Lung |
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A barium enema that coats the lining of the colon is an example of a _________.
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positive contrast medium
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The zone of unsharpness is called...
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Penumbra
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Things that are further away from the film and closer to the x-ray tube will appear ________.
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Enlarged (Magnified).
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_________ occurs because of magnification and improper beam alignment.
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Distortion
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The 6 Roentgen signs are:
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1- Size
2- Shape 3- Number 4- Location 5- Margination 6- Opacity |
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The systematic approach to imaging contains 3 parts:
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1- Technique
2- Method 3- Roentgen signs |
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Criteria of Bone Lesions:
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Aggressive
Number of Bones Bone versus joint |
Active (don't really use)
Chronic (don't really use) |
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__________ is the hallmark of aggressive disease.
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Lysis.
Which is when something is eating away at the bone. |
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3 characterizations of Periosteal proliferation:
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1- Smooth
2- Palisading 3- Spiculated |
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The dilemma of imaging is determining if something is _______ or areas between proliferation.
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lysis
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The __________ is margination.
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zone of transition.
Distinct = ______ Indistinct = _______ |
short
long |
