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SPI EXAM | 55 QUESTIONS AND ANSWERS 100% VERIFIED | UPDATED
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SPI EXAM | 55 QUESTIONS AND ANSWERS 100% VERIFIED | UPDATED
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SPI EXAM | 55 QUESTIONS AND ANSWERS 100%VERIFIED | UPDATED 2024-2025
Elevational resolution is determined by ______. - ANSWER slice thickness
Range equation - ANSWER velocity x 1.2 time of flight
temporal resolution - ANSWER Moving structures over time
What adjusts timing of voltage applied to crystals to adjust the PRF - ANSWER
pulser
attenuation coefficient - ANSWER the number of decibels of attenuation that
occurs when sound travels one centimeter
If two media have the same impedance, what percent is reflected? - ANSWER
0
100% is transmitted
Highly attenuating structures causes - ANSWER shadowing
Deepest natural focus is caused by - ANSWER high frequency and large
diameter
, Spatial compounding reduces appearance of? - ANSWER posterior shadowing
and enhancement
If the US beam pulses are emitted from left to right, how is the beam steered? -
ANSWER to right
Decreasing the number of cycles in a pulse will improve - ANSWER axial
resolution
As the transducer frequency increases, the quality factor _______________. -
ANSWER increases
Negative predictive value - ANSWER If the test is negative, it is the probability
the patient does not have the disease
The fast Fourier transformer requires - ANSWER 2 samples per cycle and
produce a doppler tracing
Increasing the number of bits per pixel will - ANSWER allow for more shades of
gray
Normal MI for contrast studies - ANSWER .4 - .6
High frequency probes have what size PE elements - ANSWER thin PE elements
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