Kremkau Ultrasound Physics Final Exam Study Guide |
Sonography & Doppler COMPREHENSIVE PREDICTOR
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How is detail resolution artifactual?
a. There is a failure to resolve two reflectors.
b. Actual size of structure is decreased.
c. Two adjacent structures are resolved.
d. Multiple reflections are displayed beneath the real reflector.
a. There is a failure to resolve two reflectors.
The comet-tail artifact is a case of ____ _.
a. refraction
b. resolution
c. attenuation
d. reverberation
d. reverberation
,Which of the following is an effect of refraction?
a. Shadowing at the edge of structures
b. Two adjacent structures seen as one
c. Incorrect representation of tissue densities
d. Structures displayed medial from correct location
a. Shadowing at the edge of structures
Received echoes originating off center from the central beam are
caused by ____ _.
a. speckle
b. speed error
c. range ambiguity
d. section thickness
d. section thickness
Which of the following artifacts may display an incorrect shape of a
structure?
a. Mirror image
b. Reverberation
c. Grating lobes
d. Propagation speed error
d. Propagation speed error
,Which of the following artifacts would most likely place an echo at a
depth much closer to the surface than it originated?
a. Speed error
b. Mirror image
c. Slice thickness
d. Range ambiguity
d. Range ambiguity
Additional beams emitted from an array transducer ______ _.
a. are stronger than the main beam
b. duplicate structures laterally
c. demonstrate multiple reflections
d. produce echoes that are routinely imaged
b. duplicate structures laterally
Which of the following would likely demonstrate acoustic
enhancement?
a. liver
b. pancreas
c. gallbladder
d. falciform ligament
c. Gallbladder
, Which of the following will most likely cause range ambiguity?
a. High wall filter setting
b. High operating frequency
c. Multiple sample volumes
d. High pulse repetition frequency
d. High pulse repetition frequency
Aliasing does not occur in ____ _.
a. color-Doppler
b. duplex imaging
c. spectral-Doppler
d. continuous wave Doppler
d. continuous wave Doppler
The Nyquist limit describes the _____ _.
a. flow speed through a stenosis
b. driving force behind blood flow
c. resistance of blood flow in a straight tube
d. minimum number of samples required to avoid aliasing
d. minimum number of samples required to avoid aliasing
Sonography & Doppler COMPREHENSIVE PREDICTOR
ASSESSMENT FINAL EXAM || TEST BANK FINAL EXAM
2026|| Most Recent Exam Actual Complete Real Exam
Questions And Correct Answers (Verified Answers)
Already Graded A+ | Guaranteed Success!! Newest
Exam | Just Released!! 2026-2027
How is detail resolution artifactual?
a. There is a failure to resolve two reflectors.
b. Actual size of structure is decreased.
c. Two adjacent structures are resolved.
d. Multiple reflections are displayed beneath the real reflector.
a. There is a failure to resolve two reflectors.
The comet-tail artifact is a case of ____ _.
a. refraction
b. resolution
c. attenuation
d. reverberation
d. reverberation
,Which of the following is an effect of refraction?
a. Shadowing at the edge of structures
b. Two adjacent structures seen as one
c. Incorrect representation of tissue densities
d. Structures displayed medial from correct location
a. Shadowing at the edge of structures
Received echoes originating off center from the central beam are
caused by ____ _.
a. speckle
b. speed error
c. range ambiguity
d. section thickness
d. section thickness
Which of the following artifacts may display an incorrect shape of a
structure?
a. Mirror image
b. Reverberation
c. Grating lobes
d. Propagation speed error
d. Propagation speed error
,Which of the following artifacts would most likely place an echo at a
depth much closer to the surface than it originated?
a. Speed error
b. Mirror image
c. Slice thickness
d. Range ambiguity
d. Range ambiguity
Additional beams emitted from an array transducer ______ _.
a. are stronger than the main beam
b. duplicate structures laterally
c. demonstrate multiple reflections
d. produce echoes that are routinely imaged
b. duplicate structures laterally
Which of the following would likely demonstrate acoustic
enhancement?
a. liver
b. pancreas
c. gallbladder
d. falciform ligament
c. Gallbladder
, Which of the following will most likely cause range ambiguity?
a. High wall filter setting
b. High operating frequency
c. Multiple sample volumes
d. High pulse repetition frequency
d. High pulse repetition frequency
Aliasing does not occur in ____ _.
a. color-Doppler
b. duplex imaging
c. spectral-Doppler
d. continuous wave Doppler
d. continuous wave Doppler
The Nyquist limit describes the _____ _.
a. flow speed through a stenosis
b. driving force behind blood flow
c. resistance of blood flow in a straight tube
d. minimum number of samples required to avoid aliasing
d. minimum number of samples required to avoid aliasing
