Zusammenfassung der Ressource
Frage 1
Frage
Which of these four values for pulse repetition frequency would have the longest pulse repetition period?
Frage 2
Frage
Which of the following four waves has the highest pulse repetition frequency?
Frage 3
Frage
Which of these four pulses with PRFs listed below has the shortest pulse repetition period?
Antworten
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12 kHz
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6000 Hz
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20 kHz
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1 kHz
Frage 4
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Which of the following four waves has the lowest pulse repetition frequency?
Antworten
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8 s
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80 microseconds
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8000 ns
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800 ms
Frage 5
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Two waves can have identical pulse repetition frequencies, even if their pulse repetition periods are different.
Frage 6
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Two waves can have identical PRFs, even if their periods are different.
Frage 7
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Two waves can have identical PRFs, even if their frequencies are different.
Frage 8
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PRF and pulse repetition period are determined only by the imaging depth.
Frage 9
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If all other factors remain unchanged, what happens to the duty factor when the PRF increases?
Antworten
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increases
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decreases
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remains the same
Frage 10
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If all other factors remain unchanged, what happens to the duty factor when the imaging depth increases?
Antworten
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increases
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decreases
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remains the same
Frage 11
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If all other factors remain unchanged, what happens to the duty factor when the PRP increases?
Antworten
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increases
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decreases
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remains the same
Frage 12
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If all other factors remain unchanged, what happens to the duty factor when the sonographer uses a new transducer with a longer pulse duration?
Antworten
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increases
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decreases
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remains the same
Frage 13
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What is the DF if the pulse duration is 1 microsecond and the PRP is 1 ms?
Frage 14
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Which of the following terms does not belong with the others?
Antworten
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high duty factor
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shallow imaging
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low PRF
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short PRP
Frage 15
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Which of the following terms does not belong with the others?
Antworten
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low duty factor
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shallow imaging
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low PRF
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long PRP