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Test 7

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test 7
Korie Hi
Quiz by Korie Hi, updated more than 1 year ago
Korie Hi
Created by Korie Hi over 5 years ago
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Resource summary

Question 1

Question
[blank_start]Absorption coefficient[blank_end]: Determines how far into a material photons of a particular wavelength can penetrate before it is absorbed [blank_start]Detective quantum efficiency (DQE)[blank_end]: The percentage of photons absorbed in a material per given exposure
Answer
  • Absorption coefficient
  • Detective quantum efficiency (DQE)
  • Detective quantum efficiency (DQE)
  • Absorption coefficient

Question 2

Question
The higher the DQE, the more [blank_start]efficient[blank_end] the system is
Answer
  • efficient
  • inefficient

Question 3

Question
The higher the frequency, the more penetrating the photon is
Answer
  • True
  • False

Question 4

Question
The higher the DQE = [blank_start]less[blank_end] radiation you use
Answer
  • less
  • more

Question 5

Question
From highest to lowest in efficiency of turning photons into light [blank_start]DR[blank_end] --> [blank_start]CR[blank_end] --> [blank_start]Screen[blank_end]
Answer
  • DR
  • CR
  • Screen
  • CR
  • DR
  • Screen
  • Screen
  • DR
  • CR

Question 6

Question
How many shades of gray can be produced by a photon beam?
Answer
  • 1,000
  • 10,000
  • 16,000
  • 1,600

Question 7

Question
A DR system can produce how many shades of gray?
Answer
  • 1,000
  • 10,000
  • 1,6000
  • 16,000

Question 8

Question
Window width: [blank_start]Controls contrast[blank_end] Window height: [blank_start]Controls density[blank_end]
Answer
  • Controls contrast
  • Control density
  • Controls density
  • Controls contrast

Question 9

Question
What does a wide window width do?
Answer
  • Decreases contrast
  • Increases contrast

Question 10

Question
What does a high window height do?
Answer
  • Image becomes darker
  • Image becomes lighter

Question 11

Question
[blank_start]Contrast resolution[blank_end]: Visibility of detail [blank_start]Spatial resolution[blank_end]: Clarity, how clear a part it
Answer
  • Contrast resolution
  • Spatial resolution
  • Spatial resolution
  • Contrast resolution

Question 12

Question
[blank_start]Spatial resolution[blank_end]: measured by MTF [blank_start]Contrast resolution[blank_end]: measured by SNR
Answer
  • Spatial resolution
  • Contrast resolution
  • Contrast resolution
  • Spatial resolution

Question 13

Question
[blank_start]Amplitude[blank_end] is how much energy a signal has
Answer
  • Amplitude
  • Frequency

Question 14

Question
As parts get smaller, blur [blank_start]increases[blank_end]
Answer
  • increases
  • decreases

Question 15

Question
You can image objects smaller than the pixel size
Answer
  • True
  • False

Question 16

Question
The smaller the pixel size, the [blank_start]higher[blank_end] the frequency
Answer
  • higher
  • lower

Question 17

Question
The ratio of photons hitting the phosphor and the number that stays in the phosphor is known as what?
Answer
  • SNR
  • MTF
  • Line spread function
  • Absorption coefficient

Question 18

Question
In radiography, increase mAs, [blank_start]increases[blank_end] SNR
Answer
  • increases
  • decreases

Question 19

Question
In DSA, Signal [blank_start]increases[blank_end] with number of frames Noise [blank_start]increases[blank_end] proportionate to the square root of number of frames
Answer
  • increases
  • decreases
  • increases
  • decreases

Question 20

Question
[blank_start]Smaller[blank_end] parts require higher contrast to be seen [blank_start]Larger[blank_end] parts require lower contrast to be seen
Answer
  • Smaller
  • Larger
  • Larger
  • Smaller

Question 21

Question
[blank_start]Lumen[blank_end]: Total amount of light given off by source relative to the frequencies that the eye is sensitive [blank_start]Radiant light[blank_end]: The total amount of light given off by a source
Answer
  • Lumen
  • Radiant light
  • Radiant light
  • Lumen

Question 22

Question
Cosine law is also known as Lambert's law
Answer
  • True
  • False

Question 23

Question
Luminous intensity is proportional to the viewing angle
Answer
  • True
  • False

Question 24

Question
Before you see the image, the computer does these three things:
Answer
  • Enhances pixel uniformity
  • Reduces noise
  • Improves contrast
  • Improves clarity

Question 25

Question
How do you compensate for image lag?
Answer
  • Increase time between exposures
  • Decrease time between exposures

Question 26

Question
[blank_start]Annotation[blank_end]: adding text [blank_start]Image stitching[blank_end]: multiple image composite [blank_start]Image inversion[blank_end]: reverse polarity of an image [blank_start]Shuttering/cropping[blank_end]: post process "collimation"
Answer
  • Annotation
  • Image stitching
  • Image inversion
  • Shuttering/cropping
  • Image stitching
  • Image inversion
  • Shuttering/cropping
  • Annotation
  • Image inversion
  • Shuttering/cropping
  • Annotation
  • Image stitching
  • Shuttering/cropping
  • Annotation
  • Image stitching
  • Image inversion

Question 27

Question
Developed test pattern to visually assess picture detail and contrast for monitors
Answer
  • SMPTE
  • NEMA
  • VESA
  • AAPM

Question 28

Question
Measures contrast and detail
Answer
  • SMPTE
  • NEMA
  • VESA
  • AAPM

Question 29

Question
Developed DICOM standard
Answer
  • NEMA
  • SMPTE
  • VESA
  • AAPM

Question 30

Question
Developed gray scale display function (GSDF) standard
Answer
  • NEMA
  • SMPTE
  • VESA
  • AAPM

Question 31

Question
Developed flat panel evaluation procedures and standards
Answer
  • VESA
  • NEMA
  • AAPM
  • SMPTE

Question 32

Question
[blank_start]TG 18-PX[blank_end]: resolution uniformity [blank_start]TG 18-LN[blank_end]: luminance (glare, uniformity, reflection, etc.) [blank_start]TG 18-QC[blank_end]: Geometric distortion [blank_start]TG 18-CX[blank_end]: resolution
Answer
  • TG 18-PX
  • TG 18-LN
  • TG 18-QC
  • TG 18-CX
  • TG 18-LN
  • TG 18-QC
  • TG 18-CX
  • TG 18-PX
  • TG 18-QC
  • TG 18-CX
  • TG 18-PX
  • TG 18-LN
  • TG 18-CX
  • TG 18-PX
  • TG 18-LN
  • TG 18-QC

Question 33

Question
[blank_start]Illuminance[blank_end]: measure of surface illumination [blank_start]Fluorescence[blank_end]: immediate light emission and cessation [blank_start]Phosphorescence[blank_end]: lag in emission and cessation [blank_start]Irradiance[blank_end]: radiant flux/unit area [blank_start]Luminescence[blank_end]: light from cold source
Answer
  • Illuminance
  • Fluorescence
  • Phosphorescence
  • Irradiance
  • Luminescence
  • Fluorescence
  • Phosphorescence
  • Irradiance
  • Luminescence
  • Illuminance
  • Phosphorescence
  • Irradiance
  • Luminescence
  • Illuminance
  • Fluorescence
  • Irradiance
  • Fluorescence
  • Phosphorescence
  • Illuminance
  • Luminescence
  • Luminescence
  • Illuminance
  • Fluorescence
  • Phosphorescence
  • Irradiance

Question 34

Question
What determines gray scale?
Answer
  • Pixel depth
  • Voxels
  • Contrast
  • Density

Question 35

Question
[blank_start]Client-server based[blank_end]: the client provides the software for operation [blank_start]Server[blank_end]: a program application that allows the sharing of data with other programs [blank_start]Client[blank_end]: a program that can accept and use data from a server
Answer
  • Client-server based
  • Server
  • Client
  • Server
  • Client-server based
  • Client
  • Client
  • Client-server based
  • Server

Question 36

Question
Which of the following has no storage capability at work station?
Answer
  • client-server based
  • web-based
  • stand-alone

Question 37

Question
"Dead in the water" if archive goes down
Answer
  • client-server based
  • web-based
  • stand-alone

Question 38

Question
Only one person can read an image at a time
Answer
  • client-server based
  • web-based
  • stand-alone

Question 39

Question
Remotely hosted electronic system accessed via an internet web browser
Answer
  • client-server based
  • web-based
  • stand-alone

Question 40

Question
Most operations done at a remote server
Answer
  • client-server based
  • web-based
  • stand-alone

Question 41

Question
Ability to customize system is limited
Answer
  • web-based
  • client-server based
  • stand-alone

Question 42

Question
Acquisitions are stored locally until deleted
Answer
  • stand-alone
  • web-based
  • client-server based

Question 43

Question
Not dependent on network for speed
Answer
  • web-based
  • client-server based
  • stand-alone

Question 44

Question
Difficult to hack
Answer
  • web-based
  • client-server based
  • stand-alone

Question 45

Question
one archive and no network
Answer
  • stand-alone
  • web-based
  • client-server based

Question 46

Question
[blank_start]Multiplanar reconstruction (MPR)[blank_end]: using data from one plane to produce an image in another plane [blank_start]Minimum intensity projection (MiniIP)[blank_end]: accentuates air filled structures [blank_start]Volume rendering technique (VRT)[blank_end]: color conversion [blank_start]Shaded surface display (SSD)[blank_end]: filtering or windowing [blank_start]Maximum intensity projection (MIP)[blank_end]: accentuates contrast media filled vessels
Answer
  • Multiplanar reconstruction (MPR)
  • Minimum intensity projection (MiniIP)
  • Volume rendering technique (VRT)
  • Shaded surface display (SSD)
  • Maximum intensity projection (MIP)
  • Minimum intensity projection (MiniIP)
  • Multiplanar reconstruction (MPR)
  • Volume rendering technique (VRT)
  • Shaded surface display (SSD)
  • Maximum intensity projection (MiniIP)
  • Volume rendering technique (VRT)
  • Multiplanar reconstruction (MPR)
  • Minimum intensity projection (MiniIP)
  • Shaded surface display (SSD)
  • Maximum intensity projection (MIP)
  • Shaded surface display (SSD)
  • Multiplanar reconstruction (MPR)
  • Minimum intensity projection (MiniIP)
  • Volume rendering technique (VRT)
  • Maximum intensity projection (MIP)
  • Maximum intensity projection (MIP)
  • Multiplanar reconstruction (MPR)
  • Minimum intensity projection (MiniIP)
  • Volume rendering technique (VRT)
  • Shaded surface display (SSD)

Question 47

Question
Most popular RAID
Answer
  • Level 0
  • Level 1
  • Level 3
  • Level 4
  • Level 5

Question 48

Question
What RAID level is data mirrored?
Answer
  • Level 0
  • Level 1
  • Level 2
  • Level 3
  • Level 4
  • Level 5

Question 49

Question
What RAID level is not used much (cannot handle multiple queries)?
Answer
  • Level 0
  • Level 1
  • Level 3
  • Level 4
  • Level 5

Question 50

Question
What RAID level can handle multiple requests simultaneously?
Answer
  • Level 0
  • Level 1
  • Level 3
  • Level 4
  • Level 5
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