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PENNY SPI REVIEW QUESTIONS & ANSWERS RATED 100% CORRECT!!
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PENNY SPI REVIEW QUESTIONS & ANSWERS RATED 100% CORRECT!!
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PENNY SPI REVIEWQUESTIONS &
ANSWERS RATED
100% CORRECT!!
PENNY SPI
OCTOBER 27, 2024
EVATEE
, PENNY SPI REVIEW QUESTIONS & ANSWERS
RATED 100% CORRECT!!
What is enhancement caused by? Answer - weakly attenuating structures
What is the multipath artifact? Answer - artifact caused by the sound beam
bouncing off several different reflectors
What is the typical value of PRF in diagnostic ultrasound? Answer - 1000-
10,000 Hz or 1-10 KHz
What are specular reflections? Answer - reflections that occur when the sound
impinges upon a large, smooth reflector at a 90 degree angle.
What are non-specular reflections? Answer - reflectors that are smaller than
the wavelength of the incident beam
Half-intensity depth Answer - the depth at which sound has lost half of its
intensity
phase quadrature Answer - the component of the Doppler device that
determines positive opposed to negative frequency shifts and, therefore,
direction of blood flow
Fast Fourier Transform (FFT) Answer - a mathematical process used for
analyzing and processing the Doppler signal to produce the spectral waveform
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