MOD 7: Bushong CH. 23 & Cengage CH.
23 Latest 2026-2027 Questions and
Answers
How is a digital radiographic artifact defined? - Correct
Answers ✅Any false visual feature on a medical image that
simulates or obscures tissue
What are the three general classifications of digital
radiographic artifacts? - Correct Answers ✅Image receptor,
software, and object artifacts
Which digital artifact category includes dust, dirt, scratches,
and pixel malfunctions? - Correct Answers ✅Image
receptor artifacts
What is the primary method for correcting artifacts produced
by dust on the image receptor? - Correct Answers ✅Proper
cleaning, provided the dust is not internal to the system
optics
Why is dust on the mirrors or lenses of a computed
radiography (CR) optical path problematic for technologists? -
Correct Answers ✅It cannot be corrected by the
technologist and requires professional service
What is the expected lifespan of DR and CR image receptors
regarding radiation exposure? - Correct Answers ✅They
should last for the life of the imaging system because there is
no such thing as "radiation fatigue"
, MOD 7: Bushong CH. 23 & Cengage CH.
23 Latest 2026-2027 Questions and
Answers
What type of artifact results from incomplete erasure of a
previous image on a CR receptor? - Correct Answers
✅Ghost image artifact
What action should be taken if a CR image receptor has not
been used for 24 hours? - Correct Answers ✅It should be
erased again before use
Term: Interpolation - Correct Answers ✅The process of
assigning a digital value to a dead pixel based on the
recorded values of adjacent pixels
What is the purpose of the preprocessing manipulation known
as flatfielding? - Correct Answers ✅To equalize the
response of each pixel to a uniform x-ray beam, correcting for
raw beam irregularities
What is the difference between "for-processing" and "for-
presentation" images? - Correct Answers ✅"For-
processing" images are raw data sets, while "for-
presentation" images are post-processed for interpretation
What is the maximum compression ratio generally considered
for lossless data compression? - Correct Answers ✅3:1
23 Latest 2026-2027 Questions and
Answers
How is a digital radiographic artifact defined? - Correct
Answers ✅Any false visual feature on a medical image that
simulates or obscures tissue
What are the three general classifications of digital
radiographic artifacts? - Correct Answers ✅Image receptor,
software, and object artifacts
Which digital artifact category includes dust, dirt, scratches,
and pixel malfunctions? - Correct Answers ✅Image
receptor artifacts
What is the primary method for correcting artifacts produced
by dust on the image receptor? - Correct Answers ✅Proper
cleaning, provided the dust is not internal to the system
optics
Why is dust on the mirrors or lenses of a computed
radiography (CR) optical path problematic for technologists? -
Correct Answers ✅It cannot be corrected by the
technologist and requires professional service
What is the expected lifespan of DR and CR image receptors
regarding radiation exposure? - Correct Answers ✅They
should last for the life of the imaging system because there is
no such thing as "radiation fatigue"
, MOD 7: Bushong CH. 23 & Cengage CH.
23 Latest 2026-2027 Questions and
Answers
What type of artifact results from incomplete erasure of a
previous image on a CR receptor? - Correct Answers
✅Ghost image artifact
What action should be taken if a CR image receptor has not
been used for 24 hours? - Correct Answers ✅It should be
erased again before use
Term: Interpolation - Correct Answers ✅The process of
assigning a digital value to a dead pixel based on the
recorded values of adjacent pixels
What is the purpose of the preprocessing manipulation known
as flatfielding? - Correct Answers ✅To equalize the
response of each pixel to a uniform x-ray beam, correcting for
raw beam irregularities
What is the difference between "for-processing" and "for-
presentation" images? - Correct Answers ✅"For-
processing" images are raw data sets, while "for-
presentation" images are post-processed for interpretation
What is the maximum compression ratio generally considered
for lossless data compression? - Correct Answers ✅3:1
