Class 131 Wed 9/11/13

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Author:
MYKE
ID:
234238
Filename:
Class 131 Wed 9/11/13
Updated:
2013-09-11 14:08:08
Tags:
Positioning
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Description:
Roberts Class
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  1. 3 things that can effect a Radiology image
    Time    distance            shielding
  2. MA is
    quantity of electrons
  3. Kv decides
    the speed of the x-ray
  4. Ma X time =
    Mass
  5. Cathod is positive or negitive
    negitive
  6. the 4 quality factors are
    • Density- amount of blacking
    • Contrast-
  7. Anode is positive or negitive
    Posotive
  8. Density is controlled by mas or kv
    Mas
  9. Density is
    he amount of blackness on an x ray
  10. xray beam is stronger on the anode or the cathode side of the beam
    Cathode
  11. Contrast is
    grayness
  12. low contrast gives you blk and white or many shades of gray
    Many shades of gray
  13. High contrast gives you black and white or many shades of gray
    Black and white
  14. resolution is
    sharpness of image
  15. what is the greatest deterrent to sharpness
    Motion
  16. the further the OID
    the greater magnification but less definition
  17. The Closer the ODI
    the less the magnification and more definition
  18. Digital Image Factors
    • Brightness
    • Contrst
    • Resolution
    • Distortion
    • Noise
    • Expousure
  19. noise is a lack of what
    Ma... Mass
  20. are rad Tech allowed to hold patient during Xray
    no
  21. Patient rotection
    • Minimum repeats
    • Correct filtration
    • ask patient if they are pregnant
    • Gonad shields 
    • correct collimation

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