CT Questions with Correct Answers
100% Pass
The process of modifying pixel values by a mathematical formula is called:
Select one:
a. convolution
b. deconvolution
c. calculus
d. all of the above - ✔✔a. convolution
TEST QUESTION
To achieve coronal or sagittal sections with computed tomography:
Select one:
a. the gantry is repositioned
b. the patient is repositioned
c. reconfiguration software is implemented
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,d. none of the above - ✔✔c. reconfiguration software is implemented
TEST QUESTION
The primary mathematical method used in the creation of computerize medical images
is the ______ transformation.
Select one:
a. Pythagorean
b. Bohr
c. Einstein
d. Fourier - ✔✔d. Fourier
Because of their simplistic nature, first-generation CT scanners were much smaller than
those used today.
Select one:
True
False - ✔✔False
If the table is moving at 12 mm/sec., and a section thickness of 10 mm is being acquired,
what is the pitch? Answer to the second digit beyond the decimal point. - ✔✔1.20
TEST QUESTION
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,A CT imaging system produces which type of image?
Select one:
a. Axial
b. Biaxial
c. Fulcrum plane
d. Longitudinal
e. Transverse - ✔✔a. Axial
Modern pulsed CT scanners operate at:
Select one:
a. 120 kVp
b. 1 to 5 msec pulses
c. up to 1,000 mA
d. all of the above - ✔✔d. all of the above
A ____ artifact is caused by attenuation of the beam as it passes through the patient.
Select one:
a. beam-hardening
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, b. ring
c. star
d. streak - ✔✔a. beam-hardening
TEST QUESTION
The HU of water is always 1.
Select one:
True
False - ✔✔False
TEST QUESTION
A _____ artifact is caused by the presence of metal in the patient when performing CT.
Select one:
a. beam-hardening
b. ring
c. star
d. streak - ✔✔c. star
During CT imaging, beam hardening artifacts:
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100% Pass
The process of modifying pixel values by a mathematical formula is called:
Select one:
a. convolution
b. deconvolution
c. calculus
d. all of the above - ✔✔a. convolution
TEST QUESTION
To achieve coronal or sagittal sections with computed tomography:
Select one:
a. the gantry is repositioned
b. the patient is repositioned
c. reconfiguration software is implemented
Brittie Donald, All Rights Reserved © 2025 1
,d. none of the above - ✔✔c. reconfiguration software is implemented
TEST QUESTION
The primary mathematical method used in the creation of computerize medical images
is the ______ transformation.
Select one:
a. Pythagorean
b. Bohr
c. Einstein
d. Fourier - ✔✔d. Fourier
Because of their simplistic nature, first-generation CT scanners were much smaller than
those used today.
Select one:
True
False - ✔✔False
If the table is moving at 12 mm/sec., and a section thickness of 10 mm is being acquired,
what is the pitch? Answer to the second digit beyond the decimal point. - ✔✔1.20
TEST QUESTION
Brittie Donald, All Rights Reserved © 2025 2
,A CT imaging system produces which type of image?
Select one:
a. Axial
b. Biaxial
c. Fulcrum plane
d. Longitudinal
e. Transverse - ✔✔a. Axial
Modern pulsed CT scanners operate at:
Select one:
a. 120 kVp
b. 1 to 5 msec pulses
c. up to 1,000 mA
d. all of the above - ✔✔d. all of the above
A ____ artifact is caused by attenuation of the beam as it passes through the patient.
Select one:
a. beam-hardening
Brittie Donald, All Rights Reserved © 2025 3
, b. ring
c. star
d. streak - ✔✔a. beam-hardening
TEST QUESTION
The HU of water is always 1.
Select one:
True
False - ✔✔False
TEST QUESTION
A _____ artifact is caused by the presence of metal in the patient when performing CT.
Select one:
a. beam-hardening
b. ring
c. star
d. streak - ✔✔c. star
During CT imaging, beam hardening artifacts:
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