Image Acquisition & Evaluation ( Contrast )

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Author:
Mariyah
ID:
306137
Filename:
Image Acquisition & Evaluation ( Contrast )
Updated:
2015-08-07 01:42:29
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Mariyah
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Description:
Contrast
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  1. Few Grey Tones Mainly Black and White Image ...What type of Contrast Is This
    High Contrast
  2. Many Grey Tones On Image is also Refereed as What type of Contrast
    Low Contrast
  3. as kVp increases what happens to Contrast
    Decreases
  4. High kVp = ____ Contrast = _____ Scale Contrast
    Low & Long ( Many Grey Tones)
  5. Low kVp = ____ Contrast = _____ Scale Contrast
    High & Short ( Black & White)
  6. What effect do Grids Have on contrast
    Grids Reduce Scatter which results is in less Fog Causing fewer gray tones increasing contrast
  7. What effect do Beam Restriction Have on contrast
    Beam restriction limits the area radiated causing less scatter resulting in a reduction of Grey Tones and Increasing Contrast or (Blackening)
  8. As Filtration Increases Contrast _____
    Decreases
  9. As Tissue Density Increases Contrast
    Decreases
  10. As Atomic # Increases Contrast_____
    Increases
  11. What is the Primary Function of Contrast
    To Make Detail Visiable
  12. Contrast is Ultimately Controlled by
    Window width & Bit Depth

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