Digital image quality

Card Set Information

Author:
tlmichelich
ID:
185620
Filename:
Digital image quality
Updated:
2012-11-27 09:48:11
Tags:
digital cr dr
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Description:
CR DR
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  1. A 500 byte amount of memory storage would allow for ___________ bits of information.

    A. 62.5
    B. 2000
    C. 4000
    D. 125
    C. 4000
    (this multiple choice question has been scrambled)
  2. Which of the following layers of the computed radiography receptor will absorb static and light?

    A. protective
    B. phosphor
    C. support
    D. conductor
    D. conductor
    (this multiple choice question has been scrambled)
  3. The blue-purple light that is emitted from the phosphor plate in CR processing, is collected by the: 

    A. PM tube
    B. TFT
    C. ADC
    A. PM tube
    (this multiple choice question has been scrambled)
  4. Light spots on the image are usually an artifact caused by:
    Dust on the image plate
  5. If the exposure index decreased from 2000 to 1700 for the carestream system, the patient dose would:

    A. decrease by half
    B. increase by 4x
    C. decrease by 1/4
    D. increase by 2x
    A. decrease by half
    (this multiple choice question has been scrambled)
  6. The blue-light emitted wieh the laser scans a computed radiography image receptor is collected by the:

    A. ADC
    B. barium fluorohalide
    C. photomultiplier tube
    D. DAC
    C. photomultiplier tube
    (this multiple choice question has been scrambled)
  7. What is the file size for an image that has a 1024 x 1024 matrix with an 8-bit depth?
    • 1024 x 1024 (8/8)=
    • 1048576 (8/8)=
    • 1048576 x(1)=

    1,048,576 or 1.05 Mb
  8. Which of the follwing modes of exposure data recongnition by Fuji allows the image receptor to process in a way most similar to film screen processing?

    A. Fixed mode
    B. automatic mode
    C. semi-autiomatic mode
    A. fixed mode
    (this multiple choice question has been scrambled)
  9. What artifact occurs when an image does not erase completely when processed by the CR reader?

    A. phantom image
    B. dropout
    C. heat blur
    D. light spot
    A. phantom image
    (this multiple choice question has been scrambled)
  10. The overlapping of exposure to create one is termed:

    A. equalization
    B. data clipping
    C. stitching
    D. edge identification
    C. stitching
    (this multiple choice question has been scrambled)

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