8873875
Questão 1
Questão
[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
Responda
-
Absorption coefficient
-
Detective quantum efficiency (DQE)
-
Detective quantum efficiency (DQE)
-
Absorption coefficient
Questão 2
Questão
The higher the DQE, the more [blank_start]efficient[blank_end] the system is
Responda
-
efficient
-
inefficient
Questão 3
Questão
The higher the frequency, the more penetrating the photon is
Responda
- True
- False
Questão 4
Questão
The higher the DQE = [blank_start]less[blank_end] radiation you use
Responda
-
less
-
more
Questão 5
Questão
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]
Responda
-
DR
-
CR
-
Screen
-
CR
-
DR
-
Screen
-
Screen
-
DR
-
CR
Questão 6
Questão
How many shades of gray can be produced by a photon beam?
Responda
-
1,000
-
10,000
-
16,000
-
1,600
Questão 7
Questão
A DR system can produce how many shades of gray?
Responda
-
1,000
-
10,000
-
1,6000
-
16,000
Questão 8
Questão
Window width: [blank_start]Controls contrast[blank_end]
Window height: [blank_start]Controls density[blank_end]
Responda
-
Controls contrast
-
Control density
-
Controls density
-
Controls contrast
Questão 9
Questão
What does a wide window width do?
Responda
-
Decreases contrast
-
Increases contrast
Questão 10
Questão
What does a high window height do?
Responda
-
Image becomes darker
-
Image becomes lighter
Questão 11
Questão
[blank_start]Contrast resolution[blank_end]: Visibility of detail
[blank_start]Spatial resolution[blank_end]: Clarity, how clear a part it
Responda
-
Contrast resolution
-
Spatial resolution
-
Spatial resolution
-
Contrast resolution
Questão 12
Questão
[blank_start]Spatial resolution[blank_end]: measured by MTF
[blank_start]Contrast resolution[blank_end]: measured by SNR
Responda
-
Spatial resolution
-
Contrast resolution
-
Contrast resolution
-
Spatial resolution
Questão 13
Questão
[blank_start]Amplitude[blank_end] is how much energy a signal has
Responda
-
Amplitude
-
Frequency
Questão 14
Questão
As parts get smaller, blur [blank_start]increases[blank_end]
Responda
-
increases
-
decreases
Questão 15
Questão
You can image objects smaller than the pixel size
Responda
- True
- False
Questão 16
Questão
The smaller the pixel size, the [blank_start]higher[blank_end] the frequency
Responda
-
higher
-
lower
Questão 17
Questão
The ratio of photons hitting the phosphor and the number that stays in the phosphor is known as what?
Responda
-
SNR
-
MTF
-
Line spread function
-
Absorption coefficient
Questão 18
Questão
In radiography, increase mAs, [blank_start]increases[blank_end] SNR
Responda
-
increases
-
decreases
Questão 19
Questão
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
Responda
-
increases
-
decreases
-
increases
-
decreases
Questão 20
Questão
[blank_start]Smaller[blank_end] parts require higher contrast to be seen
[blank_start]Larger[blank_end] parts require lower contrast to be seen
Responda
-
Smaller
-
Larger
-
Larger
-
Smaller
Questão 21
Questão
[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
Responda
-
Lumen
-
Radiant light
-
Radiant light
-
Lumen
Questão 22
Questão
Cosine law is also known as Lambert's law
Responda
- True
- False
Questão 23
Questão
Luminous intensity is proportional to the viewing angle
Responda
- True
- False
Questão 24
Questão
Before you see the image, the computer does these three things:
Responda
-
Enhances pixel uniformity
-
Reduces noise
-
Improves contrast
-
Improves clarity
Questão 25
Questão
How do you compensate for image lag?
Responda
-
Increase time between exposures
-
Decrease time between exposures
Questão 26
Questão
[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"
Responda
-
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
Questão 27
Questão
Developed test pattern to visually assess picture detail and contrast for monitors
Responda
-
SMPTE
-
NEMA
-
VESA
-
AAPM
Questão 28
Questão
Measures contrast and detail
Responda
-
SMPTE
-
NEMA
-
VESA
-
AAPM
Questão 29
Questão
Developed DICOM standard
Responda
-
NEMA
-
SMPTE
-
VESA
-
AAPM
Questão 30
Questão
Developed gray scale display function (GSDF) standard
Responda
-
NEMA
-
SMPTE
-
VESA
-
AAPM
Questão 31
Questão
Developed flat panel evaluation procedures and standards
Responda
-
VESA
-
NEMA
-
AAPM
-
SMPTE
Questão 32
Questão
[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
Responda
-
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
Questão 33
Questão
[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
Responda
-
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
Questão 34
Questão
What determines gray scale?
Responda
-
Pixel depth
-
Voxels
-
Contrast
-
Density
Questão 35
Questão
[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
Responda
-
Client-server based
-
Server
-
Client
-
Server
-
Client-server based
-
Client
-
Client
-
Client-server based
-
Server
Questão 36
Questão
Which of the following has no storage capability at work station?
Responda
-
client-server based
-
web-based
-
stand-alone
Questão 37
Questão
"Dead in the water" if archive goes down
Responda
-
client-server based
-
web-based
-
stand-alone
Questão 38
Questão
Only one person can read an image at a time
Responda
-
client-server based
-
web-based
-
stand-alone
Questão 39
Questão
Remotely hosted electronic system accessed via an internet web browser
Responda
-
client-server based
-
web-based
-
stand-alone
Questão 40
Questão
Most operations done at a remote server
Responda
-
client-server based
-
web-based
-
stand-alone
Questão 41
Questão
Ability to customize system is limited
Responda
-
web-based
-
client-server based
-
stand-alone
Questão 42
Questão
Acquisitions are stored locally until deleted
Responda
-
stand-alone
-
web-based
-
client-server based
Questão 43
Questão
Not dependent on network for speed
Responda
-
web-based
-
client-server based
-
stand-alone
Questão 44
Questão
Difficult to hack
Responda
-
web-based
-
client-server based
-
stand-alone
Questão 45
Questão
one archive and no network
Responda
-
stand-alone
-
web-based
-
client-server based
Questão 46
Questão
[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
Responda
-
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)
Questão 47
Questão
Most popular RAID
Responda
-
Level 0
-
Level 1
-
Level 3
-
Level 4
-
Level 5
Questão 48
Questão
What RAID level is data mirrored?
Responda
-
Level 0
-
Level 1
-
Level 2
-
Level 3
-
Level 4
-
Level 5
Questão 49
Questão
What RAID level is not used much (cannot handle multiple queries)?
Responda
-
Level 0
-
Level 1
-
Level 3
-
Level 4
-
Level 5
Questão 50
Questão
What RAID level can handle multiple requests simultaneously?
Responda
-
Level 0
-
Level 1
-
Level 3
-
Level 4
-
Level 5
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.