Which of the following artifacts appears as a series of closely spaced discrete echoes distal to a strongly reflective structure?
A) Ring down.
B) Comet tail.
C) Refraction.
D) Grating lobes.
Correct Answer:
Verified
Q55: Propagation speed error displaces structures _.
A) axially
B)
Q56: Edge shadowing is caused by
A) refraction
B) reverberation
C)
Q57: The attenuation group of sonographic artifacts includes
Q58: If the propagation speed that exists over
Q59: Increasing the pulse repetition frequency to avoid
Q61: Lateral duplication of a single structure into
Q62: Electromagnetic interference from nearby equipment can cloud
Q63: Some artifacts are produced by improper equipment
Q64: Duplication of the spectral display can occur
Q65: High pulse repetition frequencies can result in
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