A device that acts like a switch to send electrical charges to the image processor in a
direct conversion flat-panel detector is known as a ______ transistor.
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thin-film
Viewing monitors that are used for final image interpretation
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are medical grade quality, high resolution, and typically 3-5 megapixels.
Computed radiographic (CR) systems use:
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imaging plates that are read by a scanning laser beam
This is where an imaging system records an accurate and sharp radiographic image
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Resolution
On the histogram, the _____ represents the amount of exposure and the _____ the
incidence of pixels for each exposure level
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x-axis; y-axis
Underexposure using DR detectors will result in:
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quantum noise
A pixel bit depth of 6 yields how many shades of gray?
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, 64
Type 3 a priori analysis is unique because it takes into account which patient
characteristic?
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prosthesis
Which of the following contribute to the contrast present on the finished radiograph?
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atomic # of tissues
field size
tissue thickness
in CRT display technology an electron gun fires electrons at
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fluorescent screen
What term is used when referring to noise on an image resulting in not enough IR
exposure?
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Quantum mottle.
The principal controlling factor of radiographic receptor exposure is
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mAs.
What anatomy in the body has LOW subject contrast?
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abdomen
Penumbra decreases as
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focal spot decreases.
OID decreases.
SID increases.
The acronym PACS stands for
direct conversion flat-panel detector is known as a ______ transistor.
Give this one a try later!
thin-film
Viewing monitors that are used for final image interpretation
Give this one a try later!
are medical grade quality, high resolution, and typically 3-5 megapixels.
Computed radiographic (CR) systems use:
,Give this one a try later!
imaging plates that are read by a scanning laser beam
This is where an imaging system records an accurate and sharp radiographic image
Give this one a try later!
Resolution
On the histogram, the _____ represents the amount of exposure and the _____ the
incidence of pixels for each exposure level
Give this one a try later!
x-axis; y-axis
Underexposure using DR detectors will result in:
Give this one a try later!
quantum noise
A pixel bit depth of 6 yields how many shades of gray?
Give this one a try later!
, 64
Type 3 a priori analysis is unique because it takes into account which patient
characteristic?
Give this one a try later!
prosthesis
Which of the following contribute to the contrast present on the finished radiograph?
Give this one a try later!
atomic # of tissues
field size
tissue thickness
in CRT display technology an electron gun fires electrons at
Give this one a try later!
fluorescent screen
What term is used when referring to noise on an image resulting in not enough IR
exposure?
, Give this one a try later!
Quantum mottle.
The principal controlling factor of radiographic receptor exposure is
Give this one a try later!
mAs.
What anatomy in the body has LOW subject contrast?
Give this one a try later!
abdomen
Penumbra decreases as
Give this one a try later!
focal spot decreases.
OID decreases.
SID increases.
The acronym PACS stands for
