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Contrast & Artifacts Review

Across
If two body components are exactly the same, except their thickness, which component would absorb the most radiation
The faster the screen, the less patient dose but MORE ______
Purpose to amplify the incoming x-ray beam to reduce patient dose?
Few shades of gray but a lot of black and white in the image, short gray scale, gives you?
______is the height of the lead strips divided by the width of the interspace.
A device that absorbs scatter radiation before it can reach the image receptor
The range of differences in the intensity of the x-ray beam after it has been attenuated by the subject
Low contrast, long gray scale, numerous shades of gray and _____ black and white
Most important technical factor that affects contrast
Zipper, clothing folds, jewelry, hair fixtures & false teeth are considered?
Artifacts are undesirable optical densities that appears on an image and can lead to _______.
Down
Pharmaceutical agents used to make specific organs, blood vessels or tissue types stand out with more image contrast is
The degree of density difference between two areas on a radiograph
If we increase collimation, this decreases the amount of scatter production and overall __________contrast
The number of grid lines per inch or centimeter
Without contrast there would be no image because all densities would appear?
Without ______, there’s a wide range of high and low energy photons that pass through the tissues of the patient.
________should know "how" to correct potential artifacts and report issues that are beyond their control.
Secondary photons, unwanted exposure to the radiographic image.
An alternative to the use of a grid