Which post-processing action is always acceptable?
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Annotating with an upright marker to show the patient was in an erect
position.
What is the longest field size dimension allowable for 10 inches by 12 inches
collimation at a 40 inch source to image distance (SID)?
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12.8 inches
,How does an increase in noise affect the quality of a digital image?
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Contrast is decreased.
A radiographer makes an exposure using an 8:1, 100 line per inch grid. When
processing the image plate (IP) through the reader, the radiographer notices that a
Moire pattern is seen on the displayed image. What is the probable cause of this
artifact?
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The grid had a frequency similar to the reader's sampling frequency
If a transformer has a greater number of turns in the secondary coil than in the
primary coil, how will the output voltage be affected?
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increased
What is a method of electronic display resolution quality control testing?
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, Society of Motion Picture and Television Engineers (SMPTE) test pattern.
Which device temporarily stores an electric charge?
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Capacitor
An image of the abdomen demonstrates appropriate density and scale of contrast,
but motion blur is present due to peristalsis. If the original image was obtained with a
200 milliampere (mA) station and an exposure time of 0.35 seconds, which set of
technical factors will produce a comparable exposure while minimizing motion
artifact?
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500 mA and 0.14 seconds
What do limiting spatial resolution (LSR) and modulation transfer function (MTF) have
in common?
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They both measure spatial resolution in digital imaging
, Determine the file size for an image with a 512 x 512 matrix and 12 gray scale bit depth.
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393,216 bytes
Which is the most likely cause of a histogram error?
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Selection of an incorrect exam from the look-up table.
How does the Density log Exposure (D log E) curve appear for a digital imaging
receptor (IR)?
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A straight line at a 45 degree angle
How does emphysema impact radiographic imaging of the chest?
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Emphysema is a destructive disease, meaning the chest tissue is more
radiolucent.
Give this one a try later!
Annotating with an upright marker to show the patient was in an erect
position.
What is the longest field size dimension allowable for 10 inches by 12 inches
collimation at a 40 inch source to image distance (SID)?
Give this one a try later!
12.8 inches
,How does an increase in noise affect the quality of a digital image?
Give this one a try later!
Contrast is decreased.
A radiographer makes an exposure using an 8:1, 100 line per inch grid. When
processing the image plate (IP) through the reader, the radiographer notices that a
Moire pattern is seen on the displayed image. What is the probable cause of this
artifact?
Give this one a try later!
The grid had a frequency similar to the reader's sampling frequency
If a transformer has a greater number of turns in the secondary coil than in the
primary coil, how will the output voltage be affected?
Give this one a try later!
increased
What is a method of electronic display resolution quality control testing?
Give this one a try later!
, Society of Motion Picture and Television Engineers (SMPTE) test pattern.
Which device temporarily stores an electric charge?
Give this one a try later!
Capacitor
An image of the abdomen demonstrates appropriate density and scale of contrast,
but motion blur is present due to peristalsis. If the original image was obtained with a
200 milliampere (mA) station and an exposure time of 0.35 seconds, which set of
technical factors will produce a comparable exposure while minimizing motion
artifact?
Give this one a try later!
500 mA and 0.14 seconds
What do limiting spatial resolution (LSR) and modulation transfer function (MTF) have
in common?
Give this one a try later!
They both measure spatial resolution in digital imaging
, Determine the file size for an image with a 512 x 512 matrix and 12 gray scale bit depth.
Give this one a try later!
393,216 bytes
Which is the most likely cause of a histogram error?
Give this one a try later!
Selection of an incorrect exam from the look-up table.
How does the Density log Exposure (D log E) curve appear for a digital imaging
receptor (IR)?
Give this one a try later!
A straight line at a 45 degree angle
How does emphysema impact radiographic imaging of the chest?
Give this one a try later!
Emphysema is a destructive disease, meaning the chest tissue is more
radiolucent.
