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Clinicals > Image Critique > Flashcards

Image Critique Flashcards

1
Q

What is density?

A

the overall blackness on a film

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2
Q

Major controlling factor of density?

A

mAs

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3
Q

If you increase beam restriction (collimation), density will:

A

decrease

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4
Q

If you increase body habitus, density will:

A

decrease

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5
Q

If you increase SID, density will:

A

decrease

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6
Q

What is contrast?

A

differences in densities on a film

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7
Q

Mjor controlling factor of contrast?

A

kVp

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8
Q

If you increase body habitus, contrast will:

A

decrease

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9
Q

If you increase beam restriction (collimation), contrast will:

A

increase

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10
Q

What is brightness?

A

measurement of luminance of a monitor

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11
Q

Major controlling factor of brightness?

A

Window Level

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12
Q

Brightness is the opposite of ______

A

density

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13
Q

Increasing window level, _______ brightness

A

decreases

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14
Q

What is grayscale?

A

the differences in density on the monitor (or digital image)

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15
Q

Major controlling factor of grayscale?

A

Window Width

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16
Q

The smaller the window level, the _____ the contrast

A

higher

17
Q

What is recorded detail?

A

sharpness (or image resolution)

18
Q

Major controlling factor of recorded detail?

A

Focal Spot Size

19
Q

Increasing body habitus, _______ deatil

A

decreases

20
Q

Increasing OID, _______ detail

A

decreases

21
Q

Increasing SID, _______ detail

A

increases

22
Q

What is distortion?

A

any misrepresentation of the true size or shape of an object

23
Q

What are the 2 types of distortion?

A

size and shape

24
Q

SIze distortion is caused by:

A

excessive OID

25
Q

What are the 2 types of shape distortion?

A

elongation & foreshortening

26
Q

Elongation is caused by:

A

angling the tube

27
Q

Foreshortening is caused by:

A

angling the body part

Clinicals (1 decks)

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