Intravascular imaging generally utilizes a frequency range ________.
A) between 2.5 and 5.0 MHz
B) between 5.0 and 7.5 MHz
C) between 10.0 and 15 MHz
D) up to 50 MHz
Correct Answer:
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Q27: If the propagation speed of the transducer
Q28: The near-zone length is determined by the
Q29: Increasing the transducer frequency decreases the _.
A)
Q30: The purpose of the coupling medium is
Q31: Ultrasound transducers operate according to _.
A) Snell's
Q33: Electronic scanning is performed by _ transducers.
A)
Q34: In a curved array,the pulses travel _.
A)
Q35: Which image format is similar to that
Q36: Phasing can _.
A) focus the beam
B) improve
Q37: The three aspects to imaging resolution are
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