Module 4: Image Analysis
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| The radiographic density of a lumbar spine radiograph is too low. What are the possible causes of this image to have insufficient density? | show 🗑
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| show | Motion or changes in geometric factors during image production.
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| show | Motion
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| When blur is caused by geometric factors what is the best way to assess these factors? | show 🗑
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| Gross overexposure involves the use of excessive ____________. | show 🗑
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| Excessive Radiation is defined as: | show 🗑
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| show | Exposure Field Recognition Error
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| Exposure Field Recognition Errors can cause a _______________ error during the ___________ analysis because the ___________ ____________ weren't recognized and all of the data on the PSP plate were included in the values distribution. | show 🗑
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| show | Grid Cutoff
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| Selecting the incorrect histogram model for analysis can cause the _________ _____ _________ to display incorrect ___________ and __________. | show 🗑
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| Grid Cutoff will reduce the demonstrated ______________ of the image regardless of the receptor used. | show 🗑
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| Scatter radiation is especially hard to interpret during histogram analysis when it occurs where? | show 🗑
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| show | 1)Scatter Radiation; 2)Unrecognized exposure field borders; 3)Overexposure
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| show | Reaches a Saturation Point and all pixels values are raised to their maximum level
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| Most image blur is caused by ___________ _________. | show 🗑
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| _________ and ________ are responsible for image Size distortion because they affect the distance between the ___________ of interest and the ___________ _________. | show 🗑
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| Shape distortion is caused by a change in the ____________ relationship between the ________, the __________ and the __________ ___________. | show 🗑
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| show | Image display; SID and OID
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| show | 1)Insufficient Signal Strength; 2)Excessive Scatter; 3)Excessive Fog
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| show | Insufficient Signal Strength
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| show | Dose Area Product (DAP); Exposure; Field
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| show | Exposure Field; Exposure Field
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| show | Histogram Analysis
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| show | Peak; Low-Intensity; Underexposure
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| Recording multiple images on a single receptor can cause ___________ and ___________ areas as well as _____________ exposure fields in the center. | show 🗑
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| The current recommendation is to record ____ image per receptor to avoid __________ _________ errors. | show 🗑
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| Most Digital Artifacts appear ___________. | show 🗑
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| Cassette-Based PSP artifacts occur because each time a cassette is processed the plate reader moves the _________ _________ in and out of the cassette which can cause dust and dirt to get in the cassette. | show 🗑
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| show | Scratched or Bent; Stain
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| show | Dust and Dirt
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| Cassette-Less artifacts can occur because of malfunction of a single ________ or multiple rows of _________. | show 🗑
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| show | DELs; Dust; Dirt; Bending
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| show | Plate Artifact
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| show | Processing Artifact
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| A line running the entire length of the plate and parallel to the direction the plate traveled through the reader is most likely an artifact caused by a dirty __________ ________ in the plate ____________. | show 🗑
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| show | Signal; Photomultiplier; ADC
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| A Wavy appearance that runs across the entire plate is an artifact caused because the ___________ or ___________ was disturbed when the ____________ was being read or processed. | show 🗑
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| The Wavy appearance that runs across the entire image caused because the laser or plate was disturbed during processing is considered a ____________ artifact. | show 🗑
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