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D2 Fall - Radiology > 9/9: Digital Imaging & Image Manipulation > Flashcards

9/9: Digital Imaging & Image Manipulation Flashcards

1
Q
  1. What is image processing?
A

a. Mathematical manipulation of image data

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2
Q
  1. This magnifies, adjusts contrast, brightness, gray scale, colors, swap black and white
A

a. Qualitative

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3
Q
  1. This measures lengths, pixel values
A

a. Analytical

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4
Q
  1. What are the 4 types of digital image processing/modifications?
A

a. Compression
b. Image manipulation
c. Automated image analysis
d. Image reconstruction

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5
Q
  1. What are some reasons file memory size can become quite large?
A

a. Size of grid
b. Number of images
c. Bit depth

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6
Q
  1. This is a sharpening filter
A

a. Edge enhancement

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7
Q
  1. This is a softening filter
A

a. Noise reduction

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8
Q
  1. This is to be able to process and construct an image, the computer will turn the voltage signal to numbers and then to shades of gray
A

a. Analog to digital conversion

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9
Q
  1. Are image manipulations pre or post display modifications?
A

a. Post-display modifications

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10
Q
  1. Do image manipulations increase the diagnostic accuracy?
A

No

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11
Q
  1. This reverses the black and white
A

a. Inversion of gray scale

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12
Q
  1. If you increase or decrease contrast that is known as
A

a. brightness/contrast adjustment

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13
Q
  1. Are the brightness and contrast adjustments done together or separately?
A

a. Together

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14
Q
  1. Can edge enhancement stimulate disease?
A

Yes

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15
Q
  1. What is the toolbar where you can make all the image adjustments called?
A

a. MIPACS toolbar

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16
Q
  1. This enlarges a specific area till the biggest detail
A

a. Magnification

17
Q
  1. This applies a 3d effect to the image
A

a. Emboss function

18
Q
  1. When will the emboss function be useful?
A

a. Presentational situations

19
Q
  1. What can automated image analysis do?
A

a. Show length
b. Angles
c. Bone density
d. Area
e. Circumference

20
Q
  1. This is data utilized by other software programs and produces different image presentations
A

a. Image reconstruction

D2 Fall - Radiology (12 decks)

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