URR mock exam 1 SPI Practice Questions and Answers
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Module
URR
Institution
URR
URR mock exam 1 SPI Practice
Questions and Answers
____ is defined as specific area or location where Doppler shift info is being obtained.
A. spectral broadening
B. nyquist limit
C. sample volume
D. spectral window - Answer-C. sample volume
Spatial resolution is:
A. the minimum reflector s...
D. mechanical transducer - Answer✔✔-B. annular array
______ artifact is caused by refraction and results in subtle image degradation.
A. comet tail
B. scatter
C. misregistration
D. multipath - Answer✔✔-D. multipath
Which of the following will improve lateral resolution at all depths on the image?
A. dynamic transmit focusing
B. dynamic receive focusing
C. decrease probe frequency
D. use >3 focal zones - Answer✔✔-B. dynamic receive focusing
which of the following units is used to describe beam intensity?
A. dB/cm/MHz
B. dB
C. mW/cm 2
D. mW - Answer✔✔-C. mW/cm 2
which of the following parameters cannot be evaluated by the AIUM test object?
A. depth calibration
B. distance calibration
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