Image Acquisition and Evaluation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Distortion can be caused by what? Q239 pg229 | show 🗑
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| How often are radiographic equipment collimators required to be evaluated? Q222, pg 226 | show 🗑
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| IRs frequently have a rear lead-foil layer that functions to do what? Q219, pg 226 | show 🗑
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| show | Phosphorescence
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| show | To even out widely differing tissue densities
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| Boxes of film stored in too warm an area may be subject to what kind of artifact? Q204, pg 224 | show 🗑
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| The line-focus principle expresses the relationship between what 2 things? Q215, pg 225 | show 🗑
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| What happens to contrast as the grid ratio is decreased? | show 🗑
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| show | Blur
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| show | mAs must be increased by 30%
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| If an anatomic structure appears smaller on the IR than its actual size, it is? | show 🗑
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| show | A decrease in contrast
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| The relationship between the height of a grid's lead strips and the distance between them is referred to as? | show 🗑
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| Due to the anode heel effect, the intensity of the x-ray beam is greatest at which end of the beam? | show 🗑
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| The processing algorithm represents what? | show 🗑
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| In digital imaging, as DEL size decreases, spatial resolution does what? | show 🗑
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| show | Analog Image
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| show | A Caliper
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| Windowing of a digital image determines what? | show 🗑
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| show | Facilitate transportation through the scanner/reader
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| The intensity of ionizing radiation decreases as the distance from the source? | show 🗑
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| show | Decreased Density
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| Which device is used to compensate for variations in patient anatomy? | show 🗑
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| show | Decrease
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| The reduction in x-ray photon intensity as the photon passes through material is known as what? | show 🗑
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| Would you increase or decrease technique for Emphysema? | show 🗑
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| The absorption of useful radiation by a grid is called? | show 🗑
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| show | ADC
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| show | Cathode End
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| The direction of electron travel in the x-ray tube is? | show 🗑
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Created by:
agerling
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