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Standard format for medical images computer files that can be transferred from picture archiving system to another.
DICOM
Does not use a darkroom nor a cassette.
Direct or Digital Radiography
Information arranged in a series of rows and columns.
Matrix
Used in digital imaging to determine whether the exposure received by the image receptor was in the appropriate range.
Exposure Index or Indicator
Allows image to show either soft tissue or bone or both.
Dual Energy Subtraction
A picture element.
pixel
Software used to store medical images and share information between various sources.
PACS
An increase in _________ results in smaller pixel size and increased spatial resolution.
Matrix
Uses a photostimulable phosphor plate in a cassette.
Computed Radiography
Currently most expensive type of imaging equipment to purchase.
Direct or Digital Radiography
Utilizes amorphous selenium or silicon to convert x-ray energy to an electrical charge.
Direct or Digital Radiography
Uses a reader that scans the phosphor plate with a laser light.
Computed Radiography
______________ refers to the tendency for technologists to use higher exposure settings when using digital radiographic imaging.
dose creep
______________ occurs when insufficient exposure factors are used in digital imaging resulting in a mottled image appearance.
image noise
_____________ is the principle that exposure settings should result in radiation dose that is As Low As Reasonably Achievable.
ALARA
Digital receptors provide a wide range of exposure latitude when compared with film-screen systems.
True
False
true
Image Noise is more likely to occur when using 0.5 mAs at 60 kVp than when using 4 mAs at 60 kVp for a foot.
True
False
true
Using digital imaging result in fewer rejected images for reasons of over- and under- exposure.
True
False
true
Author
Anonymous
ID
20169
Card Set
ch9.txt
Description
ch9
Updated
2010-05-21T15:39:22Z
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