Module 4: Image Analysis
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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| show | 1)Decreased kVp; 2)Insufficient mAs; 3)Slower than expected speed receptor; 4)Less processing time; 5)Developer temp too low; 6)Decreased chemical concentration
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| Blurred images are caused by what? | show 🗑
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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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| show | Radiation
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| Excessive Radiation is defined as: | show 🗑
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| This kind of error is caused by a computer's inability to identify the edges of collimation: | show 🗑
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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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| Improper alignment of a radiographic grid in Digital Imaging can lead to __________ __________. | show 🗑
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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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| Improper brightness in a digital image can be caused by (give 3) | show 🗑
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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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| Noise in a digital image can be caused by what 3 things? | show 🗑
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| Quantum noise in digital images is caused by __________ ___________ ________. | show 🗑
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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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| show | Underexposed; Overexposed; Overlapping
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| The current recommendation is to record ____ image per receptor to avoid __________ _________ errors. | show 🗑
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| show | Bright
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| show | PSP Plate
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| show | Scratched or Bent; Stain
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| Since Cassette-Less imaging systems are sealed, ________ and ________ are less likely to cause artifacts. | show 🗑
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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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| If an Artifact runs along the entire axis and appears on every image it most likely a ________________ Artifact. | show 🗑
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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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| A dirty light guide will cause dirt to block the plate's _________ through the light guide to the ________________ tube and to the ______. | show 🗑
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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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| show | Processing Artifact
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