chapter 10

Question 1

spatial resolution

Answer 1

image small objects such as bone that will have high subject contrast

Question 2

how can spatial resolution be improved

Answer 2

a reduction in screen blur, motion blur, and geometric blur

Question 3

contrast resolution

Answer 3

being able to see the difference in adjacent subject densities (basically contrast) such as the spleen and liver

Question 4

what are the other two terms that can be used instead of spatial resolution and contrast resolution?

Answer 4

detail and recorded detail; they are less precise

Question 5

what is radiographic noise?

Answer 5

the random fluctuation in the optical density (grainy look)

Question 6

film graininess

Answer 6

distribution in size and the space between the silver halide grains

Question 7

structure mottle

Answer 7

kinda like film graininess but refer to the intensifying screen

Question 8

does the rad. tech have control over film graininess and structure mottle

Answer 8

no

Question 9

quantum mottle

Answer 9

when an x ray has low x-ray exposer causing density fluctuations

Question 10

can quantum mottle be controlled by the rad tech; how?

Answer 10

yes,they can use high mAs, low kVp, and slow image receptors