rad 354 chapt 10 concepts of rad image quality
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RAD 354 Chapt . 10 Concepts of RAD Image Quality

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RAD 354 Chapt . 10 Concepts of RAD Image Quality. Radiographic Image Quality – Hi image quality = being able to see clearly on the image Spatial resolution – ability to see SMALL objects that are in close proximity to one another Contrast Resolution - OD differences

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rad 354 chapt 10 concepts of rad image quality
RAD 354 Chapt. 10 Concepts of RAD Image Quality
  • Radiographic Image Quality – Hi image quality = being able to see clearly on the image
  • Spatial resolution – ability to see SMALL objects that are in close proximity to one another
  • Contrast Resolution - OD differences
    • Other key terms: detail, visibility of detail and recorded detail
terms con t
Terms, con’t
  • Noise; Quantum mottle;
  • System speed
    • Film-screen/receptor (how fast the OD is built up)
    • Characteristic curve (H & D curve, etc); parts of the curve
      • Sensitometry/densitometry
      • Log relative exposure – why .3 increments?
terms con t1
Terms Con’t
  • Contrast – discuss pt., barium, H2O; body habitus; screen-film/receptor factors
  • Exposure ”latitude” (chemistry/processing/speed of system
  • Geometric factors – discuss/draw all geo. Type factors
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