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img crit mid 1

image critique midterm - HD curve

Does the H&D curve start at 0? Why? no, because of base plus fog densities
What is the diagnostic useful range of densities on the H&D curve? .25-2.5
Radiographers working with any variables that interrelate can cause endless problems such as: pyramid problem
Who sets the imaging quality standards for the radiology department? radiologist
What would the H&D curve look like for a digital imaging system? linear
What portion of the H&D curve represents the contrast of the IR? straight line portion
What portion of the H&D curve represents the overexposed portion of the IR? the shoulder
What portion of the H&D curve represents the underexposed portion of the IR? the toe
Given specific base and fog densities for film, how would one determine what OD the film should be evaluated at? OD1: base + fog + .25 OD2: base + fog + 2.0
Name the 5 steps of the imaging process image acquisition, image processing, image archiving, image display, image analysis
Created by: annaluz87